"Why did you train me? Why help me save people?"
"Because I needed you to be faster. Your speed increases when you save lives." Thawne's voice, filtered through the Pipeline cell door, was stripped of all pretense. No warmth, no mentorship, no performance. Just the cold calculation, stated plainly, given to Barry without the courtesy of softening it. "Now you are fast enough. Fast enough to rupture the continuity of spacetime and hold a stable wormhole open in reality. Through your wormhole, I go home."
Barry's fist hit the cell door hard enough to leave a dent in the metal.
The years assembled themselves in front of him—all of them, every conversation and lesson and late night in the lab, every moment of genuine belief in this man—and curdled into something that tasted like bile.
"Why," he said, his voice tight and low, "would I ever help you?"
"Because it's a fair trade." Thawne looked at him through the barrier with the patience of a man who has known this conversation was coming for fifteen years and has had time to prepare every single word. "A wormhole doesn't only open forward. It opens backward. To any point with sufficient anchoring." He let that sit for exactly one beat. "You can undo that night, Barry. You can save your mother. You can bring your father home. You can have your family back—all of it, intact, the way it was supposed to be."
He paused.
"And you can stop me. Every person I've hurt, every choice I've made that I shouldn't have—you can reverse all of it. You can save me from myself." His voice shifted into something quieter and, somehow, more honest than anything he'd said before. "That's simply who you are. In the future, when we are already enemies—proper enemies, declared enemies—you spare me. Every time. Opportunity after opportunity to end it, and you never take them. I'm not asking you for something against your nature. I'm asking you for what you've already chosen, in every version of this, countless times."
Thawne looked at Barry through the cell door, and something moved in his expression that wasn't a performance—it was the accumulated weight of fifteen years of watching someone become exactly what he'd molded them into. Barry becoming the Flash. Barry stepping into every crisis. Barry growing into the hero, under Thawne's own guidance, under Thawne's own care, because that was the only way Thawne ever got home.
He'd hated the Flash for decades. He'd loved this particular one in the way that an artist loves their own masterpiece.
"Help me," Thawne said. "Flash."
Jude didn't hear Barry's answer.
The golden current in the timestream didn't stop for conversations. It carried him forward, faster now, and the next thing he saw was Barry Allen running inside the particle accelerator—a streak of gold caught in a circular track, building, building, the Speed Force feedback loop climbing toward the threshold.
Thawne's voice reached him through the fragment: "You've passed Mach 2. What you're seeing is the Speed Force itself—your past, present, and future, all present simultaneously. Find the thread. Think about that house. Think about that night."
A proton struck Barry head-on at full speed.
The wormhole opened.
And Barry went back.
Jude watched him arrive in the Allen house—the same room, the same chaos, the same two streaks of light tearing through the furniture. Young Barry on the floor, eyes white with terror. Henry, somewhere behind him, screaming.
The older Barry in the red suit reached the side door and put his hand on it.
The other Barry—the child on the floor—looked at him through the chaos. And the man in the suit, who had come all this way and was standing three feet from a door that could still be opened, looked back.
And shook his head.
Not with relief. Not with peace. He did it with the particular expression of someone who has understood something they didn't want to understand and has chosen to act on it anyway.
Don't. Not this. Not now. They're already there—Cisco, Caitlin, Ronnie, Joe, all of them. You already have them.
The door stayed closed.
Through it, from the other side, came his mother's scream.
Then silence.
Barry stood with his hand on the door, tears running down his face, the fastest man alive with nowhere left to run.
Even the Speed Force, Jude thought, looking away, can't outrun this.
Back in the accelerator, Thawne had Barry by the throat.
The wormhole—the one Barry had created, the one Thawne had needed—was gone. Closed. Whatever choice Barry had made in that house, he'd made it, and the architecture Thawne had spent fifteen years building had just come apart.
"You could have had everything!" Thawne's composure, maintained across decades and universes, had finally fractured. His voice was raw with it. "Why do you always—"
"Cisco. Caitlin. Ronnie. Joe." Barry said each name like it was a weight being placed on a scale. "And so many others. I already have them."
Thawne stared at him. Then: "I don't know why my future self kept stopping me. But I know exactly what you are." The rage returned, colder now, more certain. "Very well. Then I end this here. You first, then everyone in the lab, then both your fathers." He raised his hand—the supersonic chop, aimed directly at Barry's chest, built to stop a heart with one strike. "This is where it ends. Farewell, Flash."
The blow never landed.
A gunshot echoed through the chamber.
Thawne jerked. He turned around.
Eddie Thawne was on the floor—already going down, already not getting back up—with a gun in his hand and a wound in his chest that he had made himself. He was breathing, but it was the effortful, ragged breathing of a man burning through his absolute last reserves.
"No." Thawne's voice came out stripped of everything. "No. You idiot—what have you done—"
"My name is Eddie Thawne." Eddie's voice was steady despite the blood pooling at the corner of his mouth. He looked up at Iris, who had come in behind Joe, her face already breaking open in horror. "His name is Eobard Thawne."
He coughed once, but kept his eyes locked on her.
"Which makes me his ancestor." A stuttering breath. "So if I die—"
"Eobard can never be born."
Cisco said it before Eddie even finished—the logic arriving in his mind a half-second ahead of the words, the way Cisco's mind always worked. He looked at Thawne instinctively and found exactly what he expected: a man in the process of being unmade.
The vibration stopped. The yellow suit lost its coherence. Thawne's body flickered—present, then translucent, then present again, like a broadcast losing its signal.
"Hey." Eddie turned his head, finding Thawne with his eyes one last time. His voice was almost gentle. "You said I was the least significant Thawne in the family history."
A pause.
"I'm a hero."
The ferocity left Thawne's face. The desperation followed. What remained, in the last few seconds, was something closer to resignation—and then, beneath that, something almost like recognition. He turned to Barry. The flickering was constant now, the edges of him dissolving much faster than the center.
"I've controlled your life for so long, Barry Allen." The distortion in his voice was completely gone. Just a man's voice now, saying a thing he'd been sitting with for a very long time. "How will you live without me?"
He was still talking when Jude walked into the accelerator.
"Jude?!" Cisco spun around with the expression of someone who has just been startled by a ghost in a building where ghosts shouldn't exist. "Where have you been? We've been looking everywhere—"
"Later." Jude crossed the floor without breaking stride and crouched down beside Eddie. He checked the gunshot wound with the practiced, terrifying calm of a man who has seen a great deal of blood and learned not to perform his reactions to it.
"First," he said, "let's make sure he's actually dead."