If you didn't read The Name of This Book is SECRET, then this is another book you should definitely NOT read. No, really. There's a terrible monster grown in a lab, a strange carved ball that sings of distant secrets, and an evil threat against the mysterious Terces Society. Cass and Max-Ernest are proud new members of the top-secret Terces Society, and can't wait for their first mission. Soon they are kidnapped by their dastardly enemies, discover the powerful and mysterious Sound Prism, and find themselves in a race against time to track down a monstrous manmade creature who guards the secret of eternal life.