The Cerebrals are a tribe so elusive that most believe them to be imaginary. Like vampires, they live on an isolated Scottish island and drain languages from people’s minds. When Daniel moves with his sick mother to the island, he discovers the Cerebrals are connected to her loss of speech. The shocking scheme is unveiled when Daniel sneaks into the Cerebral village. Now, he must not only save his mother but also stop the tribe from systematically destroying all languages in the world.