Peter rode towards what had been the castle, and did not see it standing so he assumed that Edmund had been right. As he got closer, he saw that it was partially there, but not always, and he could see that it was melting. He urged his horse into a gallop, and made it to what used to be the entrance of the castle in almost record time. He dismounted, and told his horse to stay until he got back. Drawing his sword in case he met some unfriendly characters, Peter entered the remains of the ice palace.
The grand entrance was drippy, and wet, but he could tell that it used to be something special. Through the next door, there were the remains of an ice throne, with furs lying in a puddle on the ground. Shame this place had to melt Peter thought to himself. There was a flight of stairs through a corridor that he didn't really trust, but thought it necessary to go down anyway. Immediately after entering he realized that he had entered some sort of dungeon. There were chains, whole and broken all over. It looked like someone had been there just before it declined, but he didn't see anyone.
Upon going through the next room, a terrible sight met his eyes. He had entered another section of the dungeon, with the ceiling, walls, and floor all dripping wet, and there was someone in there. The person was quite small, and was facing the wall, so he couldn't see what, or who they were. Peter ran over to see what was the matter, and if it was too late to save this person. When he turned her over, he saw what was clearly a girl, and she looked human. She didn't have any hooves, or antlers to be seen. Before making another move, he removed the fabric running through her mouth. Then he began to work on the chains that bound her ankles to the wall. It took him close to 6 minutes to loosen the chains, then he severed the bonds on her wrists, picked up her soaking wet, motionless body, and ran up the stairs.
He ran all the way out to the warm summer air, and took the girl over to where his horse was. Peter gently lay the girl on the grass, and looked for a way to keep her warm. It was a sunny summer day, so he hadn't worn a coat, or brought blankets. Without giving it much more thought, he removed his shirt, and placed it over her body. God, I should have brought Susan, she would know what to do! This girl is freezing, and her wet shirt isn't helping, but I can't remove her shirt! Well, maybe I'm getting to a point where I don't have much choice. Peter quickly removed the girls over shirt, and wrapped his tightly around her.
"C'mon boy" Peter tried to get the girl onto his horse, but the horse didn't want a cold person on his back. The horse started to gallop away towards the castle, without Peter. "DAMNIT! Get back here!" but the horse didn't make any sign of hearing him, or coming back. Not knowing what else to do, Peter picked up the girl, and holding her tightly to his chest so that she would keep warm, began walking towards the castle. She was still alive, but barely, and maybe not for much longer. Ok, I can't let her sleep, because she might not wake up, but I don't know how to wake her up, and then keep her awake, maybe I should take to her. "Um, hi, I'm Peter Pevensie. I live at Cair Paravel, you have nothing to worry about, I'll take care of you, I promise. The White Witch is dead. You should be alright now."
"d-dead? You killed her?" the girl barely stuttered out the words."
"She's dead, Aslan killed her, thanks to my brother Edmund, I wish I could say that I helped, but I didn't."
"T-thanks."
"What's your name and where are you from?" Peter asked, but it was too late, the girl had fainted. Peter broke into a run, now knowing that she was alive, he had to get her back and keep her alive. He pulled her closer into him for more heat, and sprinted full speed ahead.