Sirius Begins Hogwarts

Eleven-year-old Sirius Black is thrilled to begin Hogwarts, in large part because he wants to get away from his abusive, bigoted family. He hopes that his family will not impede him from making friends, or cause him to be Sorted into Slytherin. To his delight, he ends up in Gryffindor with his three new friends, James Potter, Remus Lupin and Peter Pettigrew. And the opening feast, Sirius's favorite cousin Andromeda and some of the other older Gryffindor students tell the four first-years a bit about Hogwarts and the staff.

Sirius has flying lessons, Potions and DADA with the Slytherins. He and James find themselves very much disliking one Slytherin, Severus Snape. We also meet Lily Evans, and, at the end, Bellatrix Black and her friends.