I Solemnly Swear

What if Sirius was not Harry's godfather, but something more to Harry? What if the only person other than Lily, James, and Sirius that knew was Remus? Find out how Harry finds out he still has one parent and his adventures after. Taken with permission from DZ2 and their DZ2'S Dead Zone. DO NOT OWN HARRY POTTER OR ANYTHING RELATED. Won't be posting much until fully completed.