Make the clock reverse.

Far away, In a tower built of stone, a young boy and his father lived.Kept locked away for the safety of the world, his son you see was an abomination, a monster.Every full moon he would turn, and every moon his father hated him more and more.You see, the father didn't bring them there for the world or for his son.He did it for himself, so no one would know of the cursed boy his late wife conceived.