First published 1997
Angela comes back from her trip to Mexico, but something has changed. She treats her friends in the Investigators of the Unknown with cold hostility, turning away from the people who matter most to her. Her teammates notice the dramatic shift in her behavior and start asking uncomfortable questions. Could Angela have been taken by extraterrestrials and replaced with something else entirely? The other Investigators must figure out whether their friend has simply changed or if an alien impostor now walks among them. They face the terrifying possibility that the Angela they knew and trusted no longer exists. The group struggles with doubt, fear, and the bonds of friendship as they search for the truth about what happened to their teammate in Mexico.
Genres: science-fiction, mystery, thriller, young-adult
Vibes: emotional, suspenseful, thought-provoking
Tropes: found-family, friends-to-lovers
Setting: Mexico
120 pages · Paperback · Camelot