The Enemy's Revenge

Harry Potter is neglected by his family. He comes across a the Sith holocron of Darth Bane and agrees to restart the Sith Empire, carry out the destruction of the Jedi and bring about revival of the Sith Order. Based off of fanfictions; Dark Empire and Heart of Death(mainly theme and plot inspiration) partial rewrite of those stories takes place. Sith Harry wins, Villain wins.HP/GW