Harry gets taken to the weasleys by dumbledore, when things start to go wrong harry decides to do something about it and with the help of ron and dumbledore make a group the crusaders of light, takes place dureing 6th and 7th years and also after hogwarts

Harry potter becomes an animagus, goes to live with the Weaslys and finds out ron had done the same thing, they remember hearing somthing like this before so they start it up again something that hasn't be held for over a century,The Brotherhood of the