Harry Potter and the Inside Spies

When he-who-shall-not-be-named attacked Godrics Hollow Harry Potter's mom and dad died. One thing he didn't know was that he was not the only house attacked on that day. Follow the story of Alex and Xander with there little Cursing cat as they are recruited by Voldemort, but desperately try to fight him and join Harry. (this is my first ever book and it is probably really bad but please give it a shot. Thank you)