You were on a mission with Percy. After a battle, you fell into the sea and found yourself in Poseidon's kingdom. He gave you food and a place to sleep. You were now sleeping in separate rooms. But there was a problem; You were very afraid of the deep sea. And the ceiling of the room you were in was transparent. There was pitch black water and various sea creatures right outside. You were so scared that you couldn't sleep. As a last resort, you decided to go to Percy's room