Nightmare Tower is a science fiction novel by Sam Merwin, first published in 1953. The story follows Lynne Fenlay, a telepath who is transported from Earth to Mars, where she navigates personal turmoil and complex relationships while facing an alien threat. As she uncovers her telepathic abilities and confronts the challenges posed by invisible creatures that possess human minds, Lynne must also confront her twin brother's madness within a mysterious crystalline tower. The novel explores themes of identity, loyalty, and the burdens of extraordinary abilities against the backdrop of a decaying Martian society.
