This can relate to how Montag feels about not knowing about why they burn books and how it started; he feels very bothered and wants answers. It can also be what Montag sees when he has to burn books with a woman inside the house.
Odin and Fenrir . Fenrir is the father of wolves and a son of Loki in Norse mythology. He was foretold to kill Odin during Ragnarök, and in turn be killed by Odin's son Víðarr. He was also said to have bitten off the right hand of the god Týr.