After the canon events of October 1981, Sirius is not captures by Aurors. He transforms into his animagus form, and he follows Harry to the Dursleys. Harry grows up with the feisty Padfoot as his best friend and companion and thus, when he is accepted into Hogwarts at his 11th birthday, he refuses to come unless he can bring his dog as his familiar. Once at Hogwarts, Snape is behav