The Moon Is My Foe is the first book in the Cycle of the Moon series by J.M.C Hoult. It is preceeded by Blood On My Hands and The Cry of the Wolf. It is written from two people's points of view; Tessa Cambridge a 16 year old girl who has moved to Wolf Hill, and Damian Lupin a revered 17 year old who is a werewolf.
Tessa Cambridge is moving to Wolf Hill, Alaska with her mother Elizabeth and her brother Daniel. When she arrives she meets Damian Lupin, a mysterious violent man who is recruited others for some strange reason. Only later does Tessa realise that Damian is a werewolf of an ancient clan, and he is converting others to his cause.