... If you're thinking, "I can make something like that," sorry to disappoint you, but you probably can't. Even if you got your hands on one, it wouldn't be possible.

[ How did he guess that? Who knows. ]

The door behind me. There's even more behind it. They're in there. The Hearts of those collected here. That's why they're locked, to keep away people who don't belong in here. Normally the Alice Hearts are shut. But he took them and probably put them inside there...