A dark and hollow star
(Book)

"For centuries, the Eight Courts of Folk have lived among us, concealed by magic and bound by law to do no harm to humans. This arrangement has long kept peace in the Courts?until a series of gruesome and ritualistic murders rocks the city of Toronto and threatens to expose faeries to the human world. For queer teens, each holding a key piece of the truth behind these murders, must form a tenuous alliance in their effort to track down the mysterious killer behind these crimes. If they fail, they risk the destruction of the faerie and human worlds alike. If that's not bad enough, there's a war brewing between the Mortal and Immortal Realms, and one of these teens is destined to tip the scales. The only question is: Which way? Wish them luck. They're going to need it."

13-17.

8-12.