The standoff in the lab had reached a boiling point, the tension hanging heavy in the blue-tinted light of the Scepter's glow. Tony and Fury glared at each other, years of quiet resentments finally bubbling to the surface.
Before either man could escalate the argument further, Steve stepped between them.
"Both of you. Enough." His voice cut through the room. He turned to Tony. "Hayes is not the subject right now. An alien army is coming and we're the only thing standing between them and everybody else on this planet."
"Stay out of this, Rogers."
"I'm not staying out of anything. I'm telling you both to focus."
Tony looked at him. Really looked at him. The Scepter was doing something behind Tony's eyes. Pulling on threads that were normally held in check by years of maturity, by Pepper's steadying presence, by the responsibility of being Uncle Tony to two kids who thought he was the greatest hero in the world. The Scepter found those threads and pulled.
"You've got something to say about Arthur too, don't you?" Tony said quietly. "I can see it in your face. You've been sitting on it since Loki's little performance."
Steve met his eyes. His voice was controlled, but there was something underneath it that the Scepter was pulling on too. A thread of unease that had been sitting behind his ribs since the detention feed.
"I don't know the man," Steve said. "I've read the file. And Fury makes a fair point. A man with that much power and that little oversight should concern everyone."
"Concern." Tony tasted the word like something sour. "Arthur Hayes found your plane frozen in the ice, Rogers. You would still be a popsicle right now if he hadn't. He pointed Fury directly toward Hydra hiding inside SHIELD, which is the only reason we rooted them out before they consumed this entire organization."
"The good things don't erase the pattern," Steve said. He was not backing down. "A man who always arrives at exactly the right moment. Who always knows exactly the right thing to do. Who builds a network of people who owe him everything." Steve held Tony's gaze without flinching. "Where I come from, that's not a hero. That's a handler."
The word landed in the room like a grenade with a pulled pin.
"You don't know what you're talking about," Tony said. His voice was quiet. Dangerously quiet. "You've read one file. And you think that qualifies you to judge a man who has bled for this world since before you woke up?"
"I'm not judging. I'm observing."
"No. You're repeating what a prisoner told you to think. Loki gave you a lens and you put it on without question. That's not an observation, Captain. That's exactly the kind of blind obedience you're accusing Arthur of engineering."
The words hit. Steve's jaw tightened.
"I think for myself, Stark."
"Do you? Because from where I'm standing, you walked into this room with a weapon designed by frightened bureaucrats and an opinion designed by a god who wants us fighting each other instead of him. And you can't tell the difference between your own doubts and the ones that were planted in your head an hour ago."
Steve's composure cracked.
"You want to talk about what's been planted?" Steve said. His voice was still controlled, but the control was costing him. "You've spent years inside Arthur's circle. His house. His family. And you don't think that might affect your ability to see him clearly?"
Tony's expression went cold. "Careful, Rogers."
"I'm being careful. I'm being more careful than anyone else in this room, because I'm the only one here who isn't deeply, personally invested in defending him." Steve took a hard step forward, closing the distance. "Big man in a suit of armor, telling everyone else how the world works. Take that suit off, Stark. Take it off, and what are you?"
Tony's eyes went flat. "Genius. Billionaire. Former playboy. Philanthropist."
"I've known guys with none of that who were worth ten of you," Steve said. "The only thing you really fight for is yourself. You're not the guy to make the sacrifice play. To lay down on a wire and let the other guy crawl over you."
"I think I'd just cut the wire."
"Always a way out." Steve shook his head. "You may not be a threat, Stark. But you'd better stop pretending to be a hero."
Tony took another step forward. The scepter pulsed. "A hero? Like you? You're a laboratory experiment, Rogers. Everything special about you came out of a bottle."
"And if I wanted," Tony continued, his voice dropping, "I could make the exact same serum that made you famous. Improve it, actually. Then put on the suit and become Iron Man with super-soldier strength. The technology exists. The formula is reconstructible. The only reason there aren't a hundred super-soldiers walking around right now is because people like me and Arthur decided there shouldn't be."
Steve's eyes blazed. "Put on the suit. Let's go a few rounds right now."
Thor's booming voice cut across the room like a physical hammer blow.
"You people are so incredibly petty."
Everyone turned.
Thor stood near the lab entrance, Mjolnir at his side. He was not angry. He was disappointed, which was considerably worse.
"I have watched civilisations rise and fall over arguments less trivial than this one," Thor said. His voice was heavy. "You have been given gifts beyond any mortal's comprehension and you use them to bicker like children fighting over a toy. Loki is right about one thing. Humans are deeply, tragically unable to see past themselves."
The silence that followed was thick. The scepter pulsed steadily between them, its gem glowing brighter than it had been ten minutes ago.
Banner spoke from the far side of the lab. His voice was quiet but everyone heard it.
"You might want to step back from the scepter," he said. "All of you."
They looked at him. Then at the scepter. Then at each other.
The distance between them and the weapon was less than three meters. The gem pulsed with a rhythm that had been quickening steadily throughout the argument, feeding on the discord, amplifying it, reflecting it back into the room at a higher amplitude.
Steve was the first to step back. Then Tony. Then Fury.
The tension did not vanish. It could not vanish that quickly. But the worst of it receded, like a tide pulling back from a flooded shore. The irrational edge faded. The words they had said remained, hanging in the air between them, impossible to unsay.
Tony pulled off his glasses and rubbed his eyes. He did not apologise. Neither did Steve. Neither did Fury. They simply stood in different corners of the lab and breathed.
"Eleven percent increase in scepter emission since the argument began," Banner said, reading his instruments with clinical detachment. "It's designed to do this. Amplify whatever fault lines already exist and widen them until the structure collapses."
Natasha spoke from the doorway. Nobody had noticed her arrive.
"Loki's real play," she said. "He didn't need to escape. He just needed to sit in that cell and let the weapon do his work for him." She looked at Banner. "His plan is to turn you. Let the Hulk loose on this ship."
"It won't work," Tony said flatly.
"No," Banner agreed. "It won't."
"How certain are you?" Fury asked. His voice was professional again. The Scepter's influence had been noted, acknowledged, and filed away as a known variable. He was back to calculating.
"Very certain." Banner stood from his console. "I'll demonstrate."
He unbuttoned his shirt and pulled it off, revealing a form-fitting suit underneath. It was bright. It was colourful. The fabric had a shimmering, almost iridescent quality. Vivid greens and purples with what looked like hand-drawn lightning bolts along the sleeves.
Everyone in the room stared at him.
"What," Tony said slowly, "is that."
"Hulk's suit," Banner said simply, as if it explained everything. "The kids helped pick the colors."
"The kids."
"Elena chose the lightning bolts. Tristan chose the purple base. Hulk specifically liked the green accents. They were all very collaborative about it."
"And it stretches?" Tony asked, genuinely fascinated.
"Watch."
Without any further warning, Banner transformed.
The shift was violent and fast. Muscle and bone expanded in a cascading wave of growth. Skin darkened to deep green. The lab equipment rattled. A coffee mug fell off a console and shattered on the floor.
In three seconds, the Hulk stood in the middle of the lab. Eight feet tall. Shoulders wider than the doorway. The colourful suit had stretched perfectly over his massive frame, and the lightning bolts now the size of baseball bats.
Steve's hand moved to his shield. Tony's gauntlet formed around his right hand. Fury's hand went to his sidearm. Natasha shifted her weight onto the balls of her feet.
Hulk looked at their reactions.
He scoffed.
"Cowards." His voice was a deep, grinding rumble that vibrated in the floor plates. "Hulk is not going to do anything. Hulk does not like everyone in this room. But Hulk won't hurt anyone. Hulk promised Banner. "
He sat down heavily on the reinforced floor. The deck groaned under the impact. He rested his massive green forearms on his knees and looked profoundly bored.
Tony lowered his gauntlet. He stared at the Hulk for a long moment. Then, because he was Tony Stark and some things simply could not go unchallenged, he stepped forward.
"Hold on. You don't like me?"
Hulk looked at him with the flat, unimpressed gaze of a creature who could bench-press a building. "Why should Hulk like you?"
"Tristan likes me. You are his friend, right? I'm his absolute favorite uncle."
From the side of the room, Thor's head snapped around indignantly. "Do not lie to the beast, Stark! I am little Tristan's favorite uncle."
Hulk looked between the two of them with undisguised irritation.
"Hulk likes Tristan," he said. "Hulk does not like you two."
"That is completely unfair," Tony argued, gesturing wildly.
"Yes. On what basis do you make this cruel, uninformed judgment?" Thor added, stepping forward.
The two of them immediately began talking over each other, each loudly making their case for the Hulk's affection with rising volume and rapidly decreasing dignity. Tony aggressively cited expensive gifts and technology, while Thor loudly cited glorious Asgardian adventures and battles.
Hulk endured this bickering for approximately fifteen seconds.
Then, without any warning, the massive green frame contracted. Muscle and bone compressed. The colourful suit tightened around a rapidly shrinking body. In three seconds, Bruce Banner was sitting on the floor in his lightning-bolt suit, looking up at two of the most powerful beings on the planet with an expression of complete bewilderment.
Hulk had left rather than listen to one more second of it.
Tony recovered first. He straightened his jacket and assumed an expression of rigid clinical professionalism.
"That was a test," he said smoothly. "I was deliberately provoking the Hulk to measure his response to emotional stimulus. The test was successful. Banner, you are completely safe."
Thor nodded with great solemnity. "Yes. I was also testing him. This was a coordinated assessment of emotional resilience."
Despite everything. Despite the argument and the weapons and the Scepter and the god in the basement and the army in the sky and the words that could not be taken back. Something in the room loosened.
Not healed. Not forgiven. But loosened. The way a fist unclenches when it has been closed too long and the fingers ache.
Tony clapped his hands together. "Right. Back to work. We have a Scepter to crack and a god to outsmart. JARVIS, resume the gamma frequency analysis and cross-reference with the..."
Tony stopped.
JARVIS had chimed. Not the standard notification tone. The urgent one. The tone Tony had personally programmed to sound only when JARVIS detected an immediate, verified threat to life.
"Sir." JARVIS's voice cut through the lab with a sharpness that silenced every other sound. "A Quinjet is approaching the Helicarrier from the southeast. It is broadcasting a SHIELD transponder code. However, I have identified Agent Barton inside the aircraft. He is preparing to take action."
Every person in the room went still.
"How long?" Tony asked.
"Ninety seconds to weapons range. The bridge has not yet flagged the aircraft. Their systems are reading it as a friendly asset."
Pieces of the Mark X began flying toward Tony from the equipment case in the corner. Gauntlets locked onto his forearms. Chest plate sealed over his shirt. Boot thrusters engaged. The helmet formed around his head in three interlocking segments. The suit assembled itself around him in four seconds.
"Tony." Fury was already moving toward the door. "Go."
Tony turned toward the lab's floor-to-ceiling window. The clouds were visible beyond the glass, lit orange by the setting sun.
He ran straight at the window, smashed through it, and dropped into open air.
Natasha was already at the door. "Barton," she said.
"Go," Fury said.
She went.
Fury keyed his earpiece. "Hill. Coulson. Battle stations. We have incoming hostiles. This is not a drill."
Thor looked toward the detention level, toward the cell where his brother sat smiling. His brother, who had planned all of this from inside a glass cage while everyone else did exactly what he wanted them to do.
"I will keep watch on Loki," Thor said, and he was gone.
Banner stood in the middle of the lab in his colourful suit, surrounded by shattered glass and scattered equipment, watching the orange sky through the broken window where Tony had just disappeared.
He looked down at the scepter in its cradle. Its gem was pulsing faster now. Excited. Eager.
"This," Banner said to the empty room, "is going to be a very long day."