After midnight... [ his voice warps a little as he remembers at the last second to make it a statement and not a question. ] Then you guys would have been asleep. Everybody else fell asleep around then, too. At least, in the library. If you and Akechi passed out at midnight too, that means probably everyone in the mansion had the same experience. All the doors locked at 11, and everyone went to sleep at 12...

[ mysteries upon mysteries. ]

But if nothing unusual happened in the billiards room before you guys fell asleep, then there shouldn't be any reason to keep you guys from answering questions. You'd have to know something they didn't want you two telling everyone else.