Thanatos looked at her with sharp and dark green eyes ."A silly request you bring forth. Surely you know if this deal goes through you can't go back on it. But since you asked for that deal I shall tell Hades. You shall stay here you leave and my hounds have the right to eat you" he muses darkly turning and walked out of the room. As he walked out he took a deep breath and smiles gently going to the large looming castle. 
As he came in he passed by the familar halls and rooms he grew up in. He came to the throne room and knocked loudly.
"my lord Hades its thanatos. I have a mortal wishing to make a trade to release two souls into the human world" he would wait outside the massive doors for the king and his father figure to open the door so they could talk in private.