A slight surprise showed on his face. "You are even more daft than I thought. But if you offer me anything I want, then, I will most definitely not decline. I promise you, I will tell you what the Horcrux, the one hidden in the castle, is if you give me what I want. But before I tell you what that is, you need to take the Unbreakable Vow. And before you ask your bunch of stupid questions: vanishing from this world completely would be the case if I break my part of the deal."