"I dunno," Shikamaru said, focusing solely on the topic of return after previous disappearance. "It'd be a completely different thing if people reappeared with memories of being here. As it is, Landel's pulling people out of their real lives at different points. Bringing people back with memories of this place means that he can control the timeline in his own world." Shikamaru didn't know much about how time worked--it was hardly an important subject, except in a place like this--but it seemed like controlling your own little corner of reality wouldn't be the same as taking people out of other worlds.