Harry Potter-Greengrass and the Philosophers Stone

Harry Potter has an unusual family; a mother everyone thinks is dead, Lee-Lee, who stands in as another mother, and two sisters, each from different fathers. But still, he manages to live a relatively normal life. But when he is sent to Hogwarts, he discovers that a certain dark lord is not so dead after all. What adventures await him at Hogwarts: School of Witchcraft and Wizardry?