Back when Peter Pan was a lost boy he and his group lived in the Underground House. Everything from that time is left as it was, the dugout ground smells musty now and there's a fine layer of dust - even some of it has caved in (mostly around Peter's former throne). In the middle of the room is a tree that has grown to be crushed by the ceiling of the room, before it had someone to always chop it down every day, but it grew so fast once left alone that it fills most of the large room - Micheal's basket has fallen from the wall and the large bed is still there. No one uses this much anymore.