Loki desperately searched the shelves for a very specific book, he vaguely remembered from long ago, it was a serious looking book, almost resembling a text on physics in thickness. It was a book speaking of an ancient, almost forgotten Asgaardian legend about a man who called himself, 'Doctor', who came from a realm so foreign, most Asgaardians who heard the tales, decreed them stories made up to convince children to behave, much like the Grimm Fairy tales of Midgard.
Loki finally found it, in almost pristine condition, in spite of its age and the many layers of dust coated on the brittle leather binding. He gently pulled it off the shelf and wiped the dust from the cover with his sleeve. Cautiously Loki looked around not wanting anyone to know about the treasure he had found.
He hid the book under his multiple layers of robes, and walked out of the library wanting to find someplace private, where he could read it, and maybe, he could figure out the secrets of the TARDIS. If he could figure those out, maybe he could travel through space and time and find a friend, someone who would mock him, but rather listen to him and theorize with him.
Without interruption Loki made it to the relative peace and quiet of the royal stables, he slipped into a stall holding a chocolate coloured stallion, with eight legs. Sleipnir snorted slightly as Loki gently patted his flank before sinking into a pile of hay. He opened the book and began to read.