Irish teenager JJ Liddy discovers that time is leaking from his world into Tir na nOg, the land of the fairies, and when he attempts to stop the leak he finds out a lot about his family history, the music that he loves, and a crime his great-grandfather may or may not have committed.

In the late twenty-first century, dramatic climate change has made life in Ireland almost impossible, and soon Tir na n'Og is faced with a refugee problem, partly because of a warlord who is a member of the Liddy family.

October is an ordinary girl-- until three days before her eighteenth birthday. She develops a strange itch, she can hear dogs talk, make crows fly. Two very handsome boys at school start vying for her affections. And October discovers she can "transplant" herself through solid rock. She's not ordinary at all, but the daughter of a troll princess and a fairy prince... and a pawn in a deadly war between the trolls and the fairies.