Lord Potter: Head of House

Alternate Universe AU. Gringotts Goblins uncover a fascinating secret about a young wizard with a lightning bolt scar. This secret opens the door to a world of possibilities and a world of...girls? Harry Potter/Harem, loving Dumbledore, living/freed Sirius, eventually nice Snape, powerful Harry, darkish Ron. Huge plot with lots of fluff, smut, and lemons down the road.