It finally dawned on Bucky that she didn't know. He was brought up short, looking down at her with his brow furrowed, trying to quickly sort through what she would and wouldn't know, and what he should tell her.

"Steve survived the crash," he told her. "He was frozen, but the serum kept him alive. They dug him out a few years ago, and when they thawed him, he woke up." So the history books and the Smithsonian said. Bucky had no reason to disbelieve them.