From Light into the Darkness

AU after OOTP. After Voldemort possessed him, Harry's magic and memories are unlocked. Now, with a new Prophecy,a mysterious man meddling in his affairs, new allies and new inheritances, and a betrothal contract, Harry must now learn to unleash his inner Slytherin. After all, the Sorting Hat is never wrong, no matter that Harry chose Gryffindor