Seven black diamonds / Marr, Melissa

"Lilywhite Abernathy is a criminal--she's half human, half fae, and since the time before she was born her very blood has been illegal. A war has been raging between humans and faeries, and the Queen of Blood and Rage, ruler of the fae courts, wants to avenge the tragic death of her heir due to the actions of reckless humans. Lily's father has always shielded her from the truth, but when she's sent to the prestigious St. Columba's school, she's delivered straight into the arms of a fae Sleeper cell--the Black Diamonds. The Diamonds are planted in the human world as the sons and daughters of the most influential families, and tasked with destroying it from within. Against her will, Lilywhite's been chosen to join them, and even the romantic attention of the fae rock singer Creed Morrison isn't enough to keep Lily from wanting to run back to the familiar world she knows"--OCLC.

Lilywhite Abernathy is the daughter of a mob boss and part fae in a world where war exists between humans and fae. When she goes to the prestigious St. Columba's school, she encounters a sleeper cell of fae called the Black Diamonds whose mission is to destroy the human world from within it. Disguised as rock stars and celebrity children, Zephyr, Creed, Will, Roan, Violet, and Alkamy choose Lily to join them, but Lily thinks the world of organized crime just might be safer.