The "Dread Doctors Trilogy" is a series of novels written by Kelley Armstrong, focusing on the supernatural and the challenges faced by its characters. The story revolves around a group of teenagers who encounter mysterious and dangerous beings known as the Dread Doctors, who are experimenting on humans and altering their abilities. Set in the same universe as the popular Darkest Powers Trilogy, the series explores themes of friendship, loyalty, and the struggle for identity. The protagonists must navigate their evolving powers while uncovering the truth behind the Dread Doctors and their sinister motives, leading to thrilling confrontations and revelations.