Twelve-year-old Daniel Green is looking forward to spending his entire school break playing computer games. The only problem is his neighbor, Barnaby, a strange boy who talks to himself. But Barnaby has a secret. Barnaby's family is linked, via a Ley line in his bedroom wall, to a world known as Allapatria, an ancient place that is the source of all myths and folklore. Now, after centuries of unease, Daniel finds himself dragged into a conflict.