Mocker-Jack

  Mocker-Jack Mocker-Jack is a massive albino moldywarpe hunted by Captain Naphi for unknown reasons. He resembles a giant mole version of the White Whale from Moby-Dick.

Personality
Despite being literally a giant mole, Mocker-Jack does display some form of intelligence by repeatedly attempting to lure the Medes into various traps & being described as appearing victorious when he is killed by something that is not Naphi (which is likely how he got his name, by "mocking" Naphi, though this may simply be her own deludedness projecting humanlike traits onto him; I mean, he is a giant mole).

Appearance.
Picture a yellow mole with red eyes. Now make it the size of one of those massive buildings you find in big cities, maybe bigger, & covered in various broken weapons from past attempts to kill it, & that's what Mocker-Jack looks like.

Interestingly, Mocker-Jack is likely the character with the most physical description, despite being an animal that only appears in maybe ten pages. Most commonly described is the color of his fur. Nearly everybody agrees that it is yellow--Naphi, however, insists that it is most definitely not yellow, it's ivory.

Narrative Role
Though he rarely actually appears in the novel, Mocker-Jack is integral to the story as Captain Naphi's philosophy, being essentially her reason for living. Most of the captain's arc is spent chasing him, & she eventually manages to get a tracker on him--however, at the climax of the story, Sham & Sirocco use this tracker (which works two-ways) to lure him to the bridge to Heaven, & he fights with an angel, ultimately catching fire & falling (presumably to his death) down a chasm. During this scene, he is described as appearing to mock Naphi for being unable to kill him.