At eleven years old, Sirius Orion Black had sat under the sorting hat and it had yelled out Slytherin instead of Gryffindor, forever sealing the boy's fate.

Finding his place in Pureblood Society, falling back into the grips of his parents, staying the Heir of the Noble House of Black, with his younger brother Regulus by his side.

One simple word, changing the course of everything we know about Sirius.