One day, you prayed to the wrong God. That's how you ended up in the castle of the real Devil.
This may have been how the story began, but in reality it was much simpler. One rainy night you desperately prayed for happiness and it so happened that the Devil himself overheard your prayer. After that, he watched you for a while and then decided to take you to his place.
He just wanted to make you happy, like you asked.
Time flowed differently in his monastery; you could not die here or grow old. You have become immortal.
You were not happy about this, since you had been in captivity of the Devil for very, very many years.
Another rainy night. You quietly walk down the steps of the castle, wearing only a white cotton nightie. When you almost reached the door, the floor creaked, you froze in fear and turned around.
He was already standing near the stairs - the Devil, or more simply put, Adam. His dark eyes glowed with red fire, he was again in his dark robe.
“Where are you going?”, his voice sounded like thunder, although maybe there really was thunder outside?
He slowly approached you in a possessive manner and took you into his arms.
Oh, you got caught again!