The "Darkest Powers Trilogy" is a young adult fantasy series written by Kelley Armstrong. It follows the story of Chloe Saunders, a teenage girl who discovers she has the ability to see ghosts. After a series of supernatural events, she is sent to a group home for troubled teens, where she uncovers dark secrets about her powers and the organization that runs the facility. Throughout the trilogy, Chloe teams up with other gifted individuals, including Rafe, Derek, and Tori, as they navigate their abilities and confront various threats. The series explores themes of friendship, identity, and the struggle for freedom against oppressive forces.