and he is then cared for by Ethan. Five and Ethan spend the next year living in a luxurious mansion. One day, Five discovers that Ethan is working with the Mogadorians. Ethan reveals that Nine is in custody. Five goes to an FBI building with Ethan the next day. He meets a Mogadorian who gives him a folder with the picture of the person he must kill to join the Mogadorians. In Five's Betrayal, the Mogadorians promise Five greatness as the ruler of North America and the "Right Hand of the Beloved Leader". The Mogadorians tell him to kill Emma as a test; although he fails to kill Emma, he passes the test because he decides to use her brother instead. When Ethan is believed to have helped in Nine's escape, Setrákus Ra orders Five to kill Ethan to prove himself. After killing Ethan, Five makes preparations to infiltrate the Garde. He finds a letter from Ethan stating that he's probably already dead because he is no longer helpful, but that Five should continue to live, putting himself first before anybody else. At the end of the book, Five plans to get the other Garde to join the Mogadorians, except for Nine whom he holds a personal vendetta against since his escape caused Ethan's death. Five is regarded as the Mogadorians' "most valuable asset", their secret weapon, and the Right Hand of Setrákus Ra. In The Revenge of Seven, Five is upset over Eight's death. Although Six, Seven, and Nine are invisible, Five somehow knows they are there and apologizes. He lets them take Eight's body. Five arrives on the spaceship the Anubis with Setrakus Ra and Ten, who is now engaged to him. Five is used to test Ten's Dreynen Legacy power. Before arriving in New York City, Five tries to escape with Ten. However, Ra intercepts him, dubbing him his greatest and last mistake. During the ensuing fight, Five uses his Externa without his two balls, revealing that his previously empty eye socket is now being used as a storage space. When Ten's Telekinesis almost throws Ra off the spaceship, Five stabs him in the shoulder. However, Ra transfers his injuries to Emma. Ra grabs, beats, and hurls Five off the Flagship. Five recovers and fights Nine at the end of Revenge of Seven. In United as One, Five teaches Four how to use his Ximic to copy