"Not sure I could resist the temptation to ask if she's got any of the rest of us," Steve says, rueful, after a moment's wistful thinking.

He'd give a lot to see what Peggy looks like as she grows older, but – when he lets himself think about it – he hopes he'll be able to see it for himself. "I'm glad she's got one of you from now in there, though, pal."

He thinks of the photo tucked into his compass. "I bet it'll help, one day, when she does manage to get back."