Slytherin Prince

When Harry Potter was one, his parents died for him and he was left to forever live with The Dursleys. Or was he? When Henry was four, he mastered the art of teleportation, answering prayers and with more years to come, mastered the art of reading enochian and making deals. At eleven, he received his Hogwarts letter and the wizards get a good surprise. Who is Henry Callum really?