House of Hearts — Francesca Lia Block

Izzy Ames lives with her high school sweetheart, Cyrus Rivera, in the Salton Sea. They cling to each other and to their close friends Nephy and Seth to cope with the trauma of their pasts. Until the morning Izzy awakes to find Cyrus has vanished.

When she realizes no one will help, Izzy takes matters into her own hands and decides to search for Cyrus alone. After weeks of looking for him, she discovers a clue that leads her to the House of Hearts retreat center run by the mysterious Sky.  At House of Hearts, Izzy meets an intriguing musician named Ever Fontana and for a moment she is able to forget the pain of her past. But when new clues about Cyrus' disappearance surface, Izzy must go down into the dark to find the truth.

Izzy's quest will take her into a world of sexuality, madness, and violence, where she will discover life-changing secrets not only about Cyrus but, ultimately, about herself.