Roxas wonders about that. You can banish a heart from a body and it will try to replace it, for as many times as it takes to get it back, Sora had told him. He's still processing some of what he's heard about the future, about what Xemnas—Xehanort—had really wanted, and he probably will be for a while. But if that part is true, when does it start? How long does it take? How much of a heart could Axel have had then?

It makes him happy to be certain that the good times they had up on the clock tower were real, not just two empty beings' imitation of friendship. But the heart that Roxas is sure he has aches at the way the Organization used it against them.

At least they still have it. They could leave this place and go back to Twilight Town today, if the storm hadn't taken it, and he'd have to start all over with the other people he remembers as friends.

"Maybe," he says, and it's nice to think about, even if he's not sure if it could really happen. "But you know it wouldn't. You're my best friend, no matter what."

Once, he'd thought they'd lost that. Now that he knows they haven't, he's determined to never let go of it again, no matter what world they're in.