The boy stopped in front of the stone gargoyle at the end of the third-floor corridor.
He flicked his wand, mouthing something silently, and his expression settled into careful neutrality.
The gargoyle had been dozing. It opened its eyes at his approach, looked him over, and pricked up its ears expectantly.
"Cockroach Cluster," he said, without inflection. The gargoyle grinned and jumped aside.
Draco stepped onto the revolving staircase and rode it upward until it deposited him at the door of the Headmaster's office on the eighth floor.
He lifted the brass knocker. A warm voice came from within.
"Come in."
"Good afternoon, sir." Draco entered.
The clock on the mantelpiece struck four.
"Very punctual, Draco. Please, sit down." Dumbledore smiled at him.
Draco sat and took stock of the room, trying to work out why he'd been summoned.
The circular office was exactly as he remembered it: the long-legged desk cluttered with delicate silver instruments emitting thin curls of smoke, the Sorting Hat slumped on its shelf across the room, and the portraits of former headmasters drowsing in their frames. Fawkes sat on his perch behind the door, wearing an expression of bright curiosity that rather mirrored Draco's own.
"My boy," Professor Dumbledore said, with uncharacteristic gravity, "I expect you're wondering why I asked you here."
"I am, sir."
"Any theories?" His white beard reached his waist; Draco noticed, with mild bewilderment, that he had tied a small length of rope around the tip of it.
"If you've summoned me to offer reassurance about Pettigrew still being at large, or to suggest I'm too fragile to withstand Dementors, you needn't bother," Draco said, with the air of someone reading from a well-rehearsed script.
"Oh, I confess neither of those things concerns me greatly," Professor Dumbledore said cheerfully. "You handled both rather well, as it happens. I would simply caution you against taking risks beyond your current abilities."
His deep blue eyes rested on Draco with an enquiring quality, as though the words referred to something more specific.
Draco offered his best impression of an innocent third-year and shrugged. Was Dumbledore referring to the possibility of further Horcruxes, or to the imperfect Patronus Charm? He kept his Occlumency shields firmly in place and gave nothing away.
"Last term, we had a conversation in this office," Dumbledore continued, apparently accepting that he would get no more from the boy on that front. "We spoke about Horcruxes."
A brief silence.
"You mentioned wanting to do some research," Draco said.
"Indeed. I have spent several months pursuing various leads, and I believe the picture is beginning to come into focus." Dumbledore opened a drawer and placed an object on the desk before him.
It was a cup — or had been. Now it was blackened and twisted almost beyond recognition, the gold warped and split, its shape barely discernible.
Draco could just make out what it must once have been. A thought struck him with sudden force.
"Is this —" He looked up at Dumbledore.
"Yes," Dumbledore said calmly. "I believe this is another destroyed Horcrux."
"Another one?" Draco said, unable to keep the disbelief from his voice.
He had known, in the abstract, that Voldemort was depraved beyond most wizards' comprehension. But seeing the physical evidence was another matter. How many had the man actually created?
"Where did you find it? How was it destroyed?" He stared at the ruined cup, the urgency in his voice barely restrained.
"Let me answer your second question first," said Dumbledore. "It was destroyed by the Sword of Gryffindor. The one wielding the sword was not I, but Sirius Black. The night before last, Fawkes departed suddenly, carrying the Sorting Hat in his beak — and not long after, Sirius found me, bringing with him Fawkes, the Hat, the Sword, and this cup."
The phoenix on his perch let out a triumphant cry and spread his tail feathers with evident satisfaction.
"Sirius fought whatever dark presence was bound inside the cup — I imagine it was a brutal encounter, judging by the state he was in afterward. Fortunately, nothing was done that cannot be healed. I have arranged for him to recover in the hospital wing; he should be himself again before long." Dumbledore paused. "I have informed Harry, who is most likely with his godfather as we speak."
"How very touching," Draco said, with carefully measured insincerity. "I'm not entirely sure, though, what any of this has to do with me."
"That depends on where the cup came from," Dumbledore said, his blue eyes taking on that gentle, particular gleam. "I understand that Sirius received it from your mother."
"That's impossible — I've never seen anything like this in our house —" Draco said, startled into frankness before he could stop himself.
"I'm quite certain it didn't originate with the Malfoys," Dumbledore said. "I believe she took it from the Lestrange vault."
Draco fell silent.
An image surfaced without his permission: his mother, carrying a small wrapped package, stepping gracefully out of the Lestrange vault with the composed expression she wore when she had decided something.
Given the closeness — such as it was — between his mother and her deranged aunt Bellatrix, it was not, on reflection, entirely implausible that Narcissa might have helped herself to a piece of jewellery from the vault without asking too many questions.
"When did this happen?" he asked, his voice cooling.
"I don't know the precise date. Sometime after Sirius was released from Azkaban, I believe," said Dumbledore.
"I think I can work out when," Draco said quietly.
As far as he was aware, his mother had almost no contact with her cousin Sirius Black. There had been one occasion — a face-to-face meeting at Grimmauld Place, which Draco had assumed was a conversation about the Dementors' weaknesses. He had not thought to wonder whether anything else had passed between them.
No wonder she had slipped away early that day. When she returned to collect him, she hadn't looked well. He had put it down to some long-standing tension within the Black family. He was beginning to understand there had been rather more to it.
"He must have deceived her. She almost certainly didn't know what she was carrying," Draco said, his expression tightening.
"I suspect that's right," Dumbledore said, in the even tone of a man discussing something much less consequential. "Which is why I wanted to inform you directly: the Malfoys have been drawn into this, whether intentionally or otherwise. Your parents have played a part in the destruction of a Horcrux, and have in that sense worked against Voldemort."
"You don't seem particularly concerned about what that means for them," Draco said, his grey eyes fixed on the Headmaster. "I have done everything I have done in order to protect my family — not to expose them to greater danger. When Bellatrix discovers that something was taken from her vault, how do you suppose she will respond toward my mother?"
"I am truly sorry for that. The one small consolation is that Bellatrix is currently in Azkaban." Dumbledore held his gaze steadily.
"She has been in Azkaban before," Draco said. "That didn't prevent anything the first time. And you haven't forgotten Pettigrew, I trust?"
"That is a separate matter," said Dumbledore.
"I would not have imagined that a wizard of your standing would fall back on the same evasions as the lowest Ministry bureaucrat." Draco stood, his patience fraying. "Is there anything further to say about this cup?"
Dumbledore smiled — unhurried, unruffled. He pushed the ruined cup gently toward Draco. "Look at the design. Look closely."
Draco leaned down.
Through the blackening and damage, he could just make out the remnants of an intricate carving. A badger.
"This is —" he said softly, and something in his voice shifted.
"Yes. The Hufflepuff Cup," Dumbledore said. "One of the founding treasures of the four Hogwarts houses. I had the oldest house-elves in the castle examine it, and when they saw what had been done to it, several of them very nearly fainted from grief." He let a beat pass. "This is Helga Hufflepuff's Cup."
Draco nodded slowly.
He had come across it in his research: the Cup was said to have been the first vessel used by house-elves at Hogwarts to serve magical food. It was no surprise they could identify it. House-elves possessed an innate sensitivity to objects of that kind; they would not be mistaken.
"You will have noticed that Voldemort has a particular interest in the relics of the four founders," Dumbledore continued. "Hufflepuff's Cup. The Chamber of Secrets. I believe the treasures of all four founders hold a powerful attraction for him. I cannot say with certainty whether he has obtained the Slytherin or Ravenclaw artefacts, but I can confirm that the only known relic of Gryffindor remains safe." He nodded toward the Sword of Gryffindor, mounted in its place of honour on the wall.
"On that point, I follow your thinking," Draco said. "Slytherin's relics, at the very least, have always held a particular draw for those who claim the house's legacy."
He thought, privately and with considerable contempt, that the Dark Lord had gone about it like a peasant given access to a museum for the first time — gathering souvenirs with greedy hands and then, in the most graceless possible fashion, using those irreplaceable artefacts as vessels for the worst magic conceivable.
If the four founders had known, their collective fury would have flooded the Black Lake.
To lodge a fragment of one's corrupted soul within another person's legacy — it was no different from a dog fouling a stranger's garden. A degrading act in every sense.
No wonder the Grey Lady had been so desperate for the Ravenclaw Diadem to be destroyed. Who could bear to have their most precious inheritance defiled in such a way? It was nothing short of blasphemy.
The Diadem was gone now — dealt with quietly, between himself and the Grey Lady, in the Room of Requirement. The ring and the locket, however, were another matter. Draco's frown deepened.
"I have asked you here because I need your assistance," Dumbledore said, breaking the silence. "As a member of Slytherin House, I hope you might be able to make discreet enquiries — among your housemates, or through whatever other channels are available to you — and attempt to determine the current whereabouts of Slytherin's artefacts, and whether they remain intact. You have access to circles I do not."
Draco nearly laughed.
"You have just freely admitted to exploiting my mother, and now you intend to exploit me as well?"
"There is no one better placed for this," Dumbledore said, with perfect calm. "And the fewer people involved, the safer. Even Sirius only knew that he had destroyed a dark object. I did not tell him about Horcruxes. He still doesn't know what he actually faced."
"You seem to place a great deal of trust in me," Draco said, with a smile that carried no warmth.
"What you have already done has earned that trust," Dumbledore said simply.
Draco looked into those calm and perceptive eyes, and found that his own anger had nowhere useful to go. He dropped back into his chair with a quiet, deflated sound.
"Even if I were willing to look — and I haven't said I am — I have no concrete knowledge of Slytherin's artefacts. There are too many forgeries, too many copies made from half-remembered descriptions passed down over centuries. Most of what's out there is legend and rumour," he said flatly.
"We are not entirely without leads." Dumbledore rose, moved around the desk, and retrieved a wide, shallow stone basin from the cabinet near the door — its surface carved with runes.
Draco recognised it as a Pensieve. There was one gathering dust in a corner of his grandfather's study, though Abraxas had never shown any great interest in using it. Wizards who worked with Pensieves tended to be skilled Legilimens, and Draco was quietly glad he had applied his Occlumency shields before coming to this office. Whatever he chose to show Dumbledore, he would do so deliberately.
"I thought we might take a walk through Bob Ogden's memory," Dumbledore said, decanting a bottle of shimmering silver liquid into the basin. "It will show you clearly what Slytherin's artefacts look like."
Draco drew a steady breath and plunged forward into the Pensieve.
(The events of Bob Ogden's memory are drawn from the chapter "The House of Gaunt" in Harry Potter and the Half-Blood Prince and will not be reproduced here in full.)
After some time, Draco straightened and found himself standing again on the stone floor of Dumbledore's office. The light had shifted; the sky beyond the windows was deep amber with the last of the sunset.
He barely noticed. His mind was occupied entirely with what he had just witnessed.
That wretched, half-starved girl named Merope. The gold locket at her throat. The Gaunt family's crumbling shack. The dead snake nailed to the door. The black-stoned ring. And the fleeting glimpse of the Peverell coat of arms.
"The two artefacts — the ring with the black stone, and the gold locket — those are the Slytherin relics," Draco said quietly.
"Correct. They were the last possessions of the Gaunt family. Marvolo prized them highly — more than he valued his son Morfin, and far more than he valued his daughter Merope," said Dumbledore.
"Marvolo —" Draco said, with studied neutrality. "He is —"
"Voldemort's maternal grandfather."
"Was he also a Parselmouth?" Draco asked, certain he already knew.
"I believe so."
"I couldn't understand what they were saying," Draco said, frowning. "How were you able to follow the conversation? Are you also —"
"No, no. I understand a little," Dumbledore said, with a slight smile. "I do not speak Parseltongue."
"Can it actually be learnt? After the fact, I mean?"
"Yes. Though it is extraordinarily difficult." Dumbledore tilted his head. "In my experience, even Mermish is more tractable than Parseltongue."
Draco considered this briefly, then said, "The girl in the shack — Merope — she was his mother?"
"Very good," Dumbledore said, with genuine approval.
"Morfin was the last known male heir of the Gaunt line, and there's no record of him having any children," Draco said. "And the Dark Lord's middle name is Marvolo — not Gaunt. He's Marvolo's grandson, not his great-grandson, which means his mother can only have been Morfin's sister."
He had worked most of this out during the summer, piecing together what he could from the Malfoy library — though he had been unable to find any wizarding family with the surname Riddle.
"The Muggle man outside the window — he's the father?" Draco said, his frown sharpening.
"I must say, your ability to draw these connections is quite remarkable," Dumbledore said, with unmistakable amusement. "That Muggle, old Tom Riddle Senior, was rather handsome, wasn't he?"
"So the Dark Lord is a half-blood wizard," Draco said softly.
The conclusion landed in his chest like cold water.
"Perceptive," said Dumbledore, watching him. "You seem genuinely surprised."
Draco was. More than he could afford to show.
The Dark Lord — who thundered endlessly about the supremacy of pure-blood wizards, who had made blood purity the cornerstone of everything he claimed to stand for — was himself half-blood.
Was there anything more grotesquely ironic in the whole of wizarding history?
Did his followers know? Did Draco's own father know, even now, the true nature of the man he had served so fervently? Did his mother? Did Bellatrix, who worshipped at Voldemort's feet — did she know?
He had harboured doubts about the Dark Lord for a long time. The sheer indiscriminate brutality of it had never sat right with him — pure-blood wizards killing other pure-blood wizards, violating a consensus that had held even amongst families with bitterly opposing loyalties. Wizard bloodlines were rare and precious things. Even between enemies, there had once been a basic understanding: you did not extinguish what could not be replaced. The Dark Lord had never observed that boundary. He never observed any boundary.
Now everything made a particular kind of terrible sense.
"He has been using them," Draco said, the words coming out slightly more raw than he intended. "Using pure-blood sentiment as a tool to serve his own ends, whatever those ends actually are. I doubt very much that they are what he has claimed."
"I must admit, I did not expect you to arrive at that conclusion," Dumbledore said, studying him with more attention than Draco was comfortable with. "Very few people would reason their way to it, let alone at your age."
"It's a reasonable extrapolation, nothing more," Draco said, avoiding his gaze.
He caught himself. He had let too much feeling into his voice, and Dumbledore had noticed. That would not do. He needed to regain his footing.
Draco took a measured breath and steered the conversation elsewhere.
"The girl — she must have used something on the Muggle. He showed no interest in her at all." He was thinking of the love potions Slughorn had once demonstrated with such enthusiasm.
"A reasonable conjecture," said Dumbledore, his eyes flickering with what might have been acknowledgement. "I suspect she did. Whatever she used, however, it evidently did not hold. One year later, old Tom Riddle left her during her pregnancy, returned to Little Hangleton, and told everyone he had been tricked."
"What a pitiful situation all round," Draco said, with more edge than sympathy. Being enchanted into false love, versus freely giving love to someone who would never return it — he genuinely could not decide which was the worse fate.
"You mentioned that Harry told you Tom Riddle grew up in an orphanage," he said. "What became of Merope?"
"I suspect she did not survive long after giving birth," Dumbledore said quietly.
"Then the locket disappeared with her?" Draco said.
Dumbledore decanted a second measure of memory into the Pensieve and stirred it gently.
A stooped old man surfaced from the liquid — his hair so overgrown it fell across his eyes entirely.
"Yes, we came by it under rather unusual circumstances... a young witch, just before Christmas... dressed in rags, visibly with child... I looked closely and there it was, plain as anything, the Slytherin mark on the clasp... priceless, of course... I gave her ten Galleons for it..."
"That is the memory of Caractacus Burke," Dumbledore said, with a quiet sigh. "Merope sold the locket when she had nothing left. From what Burke let slip, he later sold it on to a Hepzibah Smith — a very elderly, very wealthy witch, and an accomplished collector."
"She's been dead for years," Draco said, looking up.
Dumbledore nodded.
"When her estate was settled, Burke tried to buy the locket back. It was not among the items that went to auction."
Draco returned to his chair, gaze drifting to the deepening sky. "Hepzibah Smith — she was a distant descendant of Helga Hufflepuff, wasn't she? I've seen that branch listed in several wizarding genealogies."
"Yes," Dumbledore said, tapping the desk once, thoughtfully. "That connection seems worth pursuing." He looked at the ruined Cup.
"What about the ring? Is it still with Morfin?" Draco asked.
"I visited Morfin in Azkaban some time ago. I won't walk you through his memories today — we are running short of time. In brief: after serving his sentence for a previous attack on Muggles, Morfin returned to the Gaunt shack and lived alone there, wearing the ring — until the day his young nephew paid him a visit." Dumbledore paused. "After that meeting, Morfin's memory had been heavily tampered with. When he came to himself, he was already back in Azkaban — this time convicted of murdering old Tom Riddle and his family. The ring was gone."
"He killed his own Muggle father," Draco said. It was not a question. It was entirely consistent with everything he knew about what that man was.
"I believe so," Dumbledore said.
"And then made a Horcrux." Draco said it quietly, the weight of it settling over him.
"Very likely."
"The ring fits that pattern — it was a family object, it carried Marvolo's pride. The locket is less certain; we haven't established a direct connection between it and him at that time." He chose each word carefully. "Though I wouldn't dismiss it."
"The locket's disappearance is suggestive," Dumbledore said, his voice dropping slightly. "I can smell a design in it. Draco — why limit your imagination? Why not both?"
"Both of them Horcruxes?" Draco felt his composure crack, just slightly. "That is a repulsive thought."
"We must prepare for the worst," Dumbledore said, with quiet seriousness. "It is the only responsible approach."
"Even granting all of that — I have no idea where either object currently is," Draco said plainly. "Whatever the earlier history, the moment they came into the Dark Lord's possession, everything changes. He would never leave them somewhere obvious."
"We are not without a starting point," Dumbledore said. "Hepzibah Smith remains a thread worth following."
"She is dead. Chasing the history of a dead woman is a long way around. Whatever passed through her hands, if it ended up with the Dark Lord, it could be hidden anywhere in the world beneath layers of Dark magic." Draco looked at him directly. "Unless — did you search the orphanage? Or the Gaunt shack?"
"The orphanage is full of Muggles. I could detect no magical trace there. The Gaunt property has been a ruin for decades; there is nothing left," Dumbledore said.
"Then he probably has no particular attachment to those places. I would expect him to have hidden them somewhere remote and thoroughly cursed — something to give pause even to a wizard looking deliberately." Draco paused. "Though the magic inherent in those objects alone would be formidable, quite apart from anything he added. Salazar Slytherin chose them for a reason."
"Precisely so." Dumbledore folded his hands. "Draco, what I ask of you is simply this: make quiet enquiries among your Slytherin housemates. If any of them have encountered something resembling either artefact, I want to know. And if you do find a lead — do not touch anything. Come to me directly, and I will deal with it. Understood?"
Draco let his careful expression drop, just for a moment.
He thought of the diary. How it had wormed its way into a young girl's mind, stripped her of herself, opened the Chamber, and summoned the Basilisk — and how Harry had only managed to destroy it with a combination of Fawkes, the Sword, and the Basilisk's own fang, and a great deal of desperate luck.
He thought of the Ravenclaw Diadem in the Room of Requirement, and the whispers it had breathed at him the moment he came near it. If the Grey Lady hadn't been there to remind him of what it was and what it did, he might have put it on. The thought still sent a cold prickle across his skin.
And Hufflepuff's Cup had left Sirius Black — a wizard of exceptional skill — needing bed rest under Madam Pomfrey's care. Whereas the Diadem's destruction had shattered every bone in Draco's hand, and he had been healed by morning.
Horcruxes were not things to be handled carelessly, by anyone.
"You're right," Draco said, his voice quieter than before. "I agree — Horcruxes are uniquely dangerous. Destroying them isn't a matter of power alone. And I would strongly recommend, Professor, that when you move to investigate any of these objects, you do not do so alone."
"I will consider it carefully," Dumbledore said, gently. "But it is growing late. You will miss dinner, Draco."
Draco rose, feeling the fatigue of the past two hours settle into his bones. His temples were beginning to ache.
"Draco —"
He turned at the door.
Dumbledore stood with an expression Draco had not seen on him before — visible tiredness, and something that looked, for once, like genuine apology.
"I am sorry about your mother. Sirius acted without knowing the danger he was drawing her into. Should anything ever happen that places your parents at risk, I give you my word that I will do everything within my power to protect them."
"I hope that is a promise you intend to keep," Draco said evenly, "and that it comes without another debt attached."
"As you wish," said Dumbledore.
"And whatever has passed in this room stays in this room," Draco added, his voice returning to its familiar flatness. "No one else."
Dumbledore was quiet for a long moment. "What happens in this office remains here."
Draco gave a short, reluctant nod and left.
The sky above Hogwarts had gone fully dark. From the eighth-floor corridor window, the castle below looked like something from a nightmare — vast, black, and alive with shadow. The Dementors circled beyond the wards, their shapes moving in the darkness with the patient, dreadful certainty of things that knew they would eventually be fed.
Draco felt deeply, thoroughly tired.
He had no appetite for dinner. He walked down through the noise and warmth of the castle's evening crowds without registering any of it, and shut himself in his room, pale-faced and worn.
The anxieties that had been coiling quietly at the edges of his mind since the summer had taken on solid, physical form. The Horcruxes were real, they were multiple, and the threads were multiplying faster than he could follow.
He had handed this to Dumbledore. He had believed that handing it to Dumbledore would buy him space to breathe.
It had not. It had only opened the next door.
Lockets. Rings. And Merlin only knew what else.
Draco lay back on his bed, staring at the canopy, his thoughts turning in slow, restless circles.
The image of the small gold locket — its clasp wrought into a serpentine S — kept rising to the surface of his mind, trailing a familiar feeling he couldn't quite place.
He had seen it somewhere before. He was almost certain of it.