This is continuing with Jenny and Yes I did get a little help from the story "Captured by Pitch".
North walked around the observatory looking for two particular frosty teenagers. When they had first come to his home he had put a spell on the North Pole preventing anyone from coming in or out of the North Pole without his permission. Plus he had put a spell on Jack's staff and Jenny's necklace letting him see through their objects. First he tried Jenny, she was less naughty then Jack, her necklace seemed to be sideways in the library. It wasn't exactly the best lead but it was better than no lead.
He walk down to the library and in the favorite chair of both Frost children he saw from under the chair he saw two pairs of skinny, pale ankles. He was about to start lecture them on how they should tell him where they were going but stopped when he saw that both where fast asleep. Jenny's head had fallen into Jack's lap and his head had fallen on top of the chair's shoulder. So he just picked up Jenny the smaller of them and carried her back to her room. It was a big room with a desk, a blue bed, a large window, and a nice size closet.
Then went back for Jack but found that he was awake. "Where's Jenny?" he said shakily like he was scared she was gone which was understandable since for the first 300 years of his life she was missing then was returned to him after the Guardians (mostly Jack) had stopped Pitch.
"It's ok Jack" said North "she fell asleep so I took her up to her room."
"No no no it's n-not ok we w-where in the l-library and then P-pitch was here!" Jack said frantically.
"Jack no one can get out without my permission so you were just dreaming." North replied calmly.
"Well can I check on her at least?" Jack asked.
"Sure why not." North said. He watched calmly as Jack walked up the stairs and then North followed after him. He watched as Jack brushed her hair out of her face and then frowned.
"What's the matter?" North asked.
Jack look terrified "she's burning up...". North ran over and indeed she felt warm. He ran down to the main observatory and sent a signal to all the Guardians telling them to come fast.