In the thrilling novel "The Mavees," two determined FBI agents, Tom and Dan, embark on a dangerous mission to track down a notorious criminal named Mason. Unbeknownst to them, Mason is possessed by a sinister demon known as Tahku.As their investigation deepens, Tom and Dan uncover a secret beyond their wildest imaginations. In the depths of a foreboding forest, they encounter a mysterious creature named Ky. Ky, a childlike entity known as a Mavees, becomes an unlikely companion to the agents. As the FBI agents close in on Mason, a violent confrontation ensues, exposing them and the demon to a malevolent virus that irrevocably transforms their lives.