"It's extremely dangerous," said Enola. "The more we split Harry's mind, the less control he has in each plain. When he first came to us, after the Forest five years ago, it was the only choice we had. He would have driven himself mad. That dark plain, if you are ever unfortunate enough to see it, that's what his waking mind was like when he returned from the dead. We had to divide his mind to keep him sane.