Percy and Annabeth head to Hogwarts. Why? To see if they could make good allies, or would just get themselves killed.

This is the sequel to Family Habits. If you have not read Family Habits, go read that one and then come back. :)

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?

Percy has been through a lot, being kidnapped, having his memory wiped, several battles, two wars. He does not need anything else to happen. Too bad the wizards, which are real apparently (!?), didn't get the memo. Well, you know the phrase, when in Rome. (Heh, Rome, get it?) (After BoO and during Order of the Phoenix.) [I obviously am not Uncle Rick or JK Rowling.] {Anyone else got that Hufflepuff Pride?}

Percy Jackson is trying to be normal. He has tests to take, he has a girlfriend and friendships to keep up. He has a life, but of course the fates have other plans for him. Percy Jackson gets chased by some strange people in spandex, so what's he do? He ran, which seems to have been a mistake. Now the Avengers are looking for him and without knowing their intentions, Percy begins to question his choices. Then things just get worse from there!

She first saw him when she was 22 years old, and injured on a mission. He was 10 years old, and visiting an aquarium. Percy Jackson looked into Natasha Romanoff's weary but determined eyes, and decided to help her. And so, he pulled a lever, spilling his class and her enemies into a tank. That was not the last she saw of him. By the time several years pass, the two green-eyed siblings by bond will be known as heroes, albeit of different worlds. Perhaps they don't know everything about each other. But they do know that they will always have each other's backs. He helps her out when her missions don't go the way they planned, which doesn't happen too often. She teaches him how to be a good spy, although that isn't the intention when they start the lessons. And they become very close, just as close as true siblings, in fact. So when Natasha finds herself in a complicated position during the Avengers' Civil War, Percy decides to interfere. And the Avengers are extremely surprised when they meet Natasha's younger brother. Plans are made and set in motion, alliances are completely misconstrued, friendships are tested and broken, and the two siblings find themselves on their own side against the world. However, there's something bigger in the works for the Avengers, and they'll need all the help they can get to face it. Including the two green-eyed siblings in everything but blood. This is largely Marvel canon compliant up until Captain America: Civil War, with Percy's interaction with Natasha being a background to the PJO books. Cover by @cajoling - she's awesome, honestly I'd check out her work as well lol