Kelley Armstrong is a Canadian author known for her work in the fantasy and horror genres. She gained popularity with her series, particularly the Women of the Otherworld, which features strong female protagonists and explores themes of supernatural beings like werewolves and witches. Armstrong's writing often blends elements of mystery and romance, appealing to a wide audience. In addition to her novels, Armstrong has written young adult fiction, including the Darkest Powers series, which follows a group of teens with supernatural abilities. Her storytelling is characterized by rich world-building and complex characters, making her a prominent figure in contemporary speculative fiction.