[ Oops. Fitz withdraws slightly under the scrutiny, expression guarded and one hand scrubbing back over his hair, restless.

There's a delay while he considers the question, then a noncommittal shrug. ]

Maybe. I don't know what they're doing, exactly. It's a... it was a government experiment. But it's over, now. Whatever the magic ingredient was, they've lost it.

[ A beat. ] Not actual magic. Probably. But the important thing is that it can't be what's brought you back, in any case.