After enduring Tartarus and then winning his second war, Percy Jackson is the Champion of Olympus. However, he didn't come out of the war his normal self. He came out broken and with flashbacks and nightmares haunting his mind. In order for Percy to get better, the gods push him to stay with the Avengers. But the enemy isn't going to wait for Percy to defeat his demons. A darker power is stirring. A darker power so fearsome and strong that even the gods and goddesses are scared. Scared enough that this time, they want the Avenger's help. A third war is coming and whether or not they will win isn't clear. (Complete)

Percy moves in with his long lost uncle, the great Tony Stark, a year after his mom and step-dad's disappearances. How will things play out with Percy's new girl and his new family. Also can he keep his demigod secret with two prying scientists, three spies, a well-meaning veteran, and an Asgardian who knows more than anyone realizes?