The Hollow by Jessica Verday

The Hollow is beautiful book about a girl name Abbey Browning who's best friend Kristen went missing and now everyone in Sleepy Hollow assumes Kristen's dead except for Abbey. Even though loneliness is killing Abbey so to speak she meets a mysterious handsome boy named Caspian. Abbey is beginning to feel normal again until she finds out a secret that Caspian has been hiding from her that might just question her sanity.