All 17 year old Ely knew was as follows : 1) He lost his dog, 2) He lost his house and his family within it, and 3) He can't differentiate between what's reality and whats not. All he now knows is that he can trust one person and one person only, and she seems to know far more than what he can comprehend. All these weird occurences only started after I saw one thing.... the Ghost Tree.