Devils house (Percico)

Percy moves to a small town with his mom. They are just settling in when percy finds out that this house has some major history and it even has a nickname "Devils house". When he goes in the house he discovered a cellar in a basement.WHAT. He decided to pick out his room that was on the 3rd floor. But he finds a boy in his room by the window. (What is going on also this story is going to be on my tumblr check that out too and follow)