Steve's chest and shoulders rise and fall with shallow, rapid breaths, much as Tony's had earlier.

The things they'd done in this place... it's unspeakable. Worse even than Schmidt had managed. He'll never get Bucky's scream when Zemo began saying the words out of his head, and he's all too horribly aware that it couldn't have been the first – or even the tenth, the twentieth time – Bucky's screams had echoed through this place.

He suppresses a shudder and looks away from the chair, to his best friend. "No more," he promises. "Let's take it apart."