[voice]
[She pauses a moment, debating whether to reveal more. Still, she couldn't help but feel a little...sorry for him given the conversation she was..."overhearing."]
Sometimes people get lost in the dimensional stabilizer and disappear from the prison. Sometimes they return, remembering everything about this place and sometimes it's like they've never been here before. And sometimes they aren't from the same time period they were before.
Itachi has been here twice. He was older the first time.