Mangle has rosy red cheeks, which are hard to notice from the teaser image, as well as lipstick haphazardly dotted on its elongated snout. It also has pink eyelids and long eyelashes. Its teeth are also smaller, but its endoskeleton's teeth are also visible. A pink bow tie is also attached to its bent chassis, and its eyes also appear to be more realistic in design than the others. It also has a second head that seems completely endoskeleton in design, which bears Mangle's left eye on it. If looked at closely, it can be seen that Mangle has pink nail polish on its feet.
Mangle is clearly in a disfigured and mutilated state, it seems, completely to the point of mechanical mutilation. Mangle also does not seem to have a suit at all, it being almost entirely an endoskeleton, except for its head, both of its hands, and one of its feet, which remain attached to its endoskeleton. Mangle's head is white and has pale red accents on its inner ear, snout, and around its eyes. Its right eye is still attached to its costumed head, unlike its left eye, which is still attached to its endoskeleton head. It appears to be the only funtime animatronic in a worse state than their old cloth-like counterparts.
Its costume head also appears to be dislocated from the endoskeleton's head, which can be seen attached to a neck-like limb near it. Mangle appears to have no endoskeleton torso, and it appears to be almost entirely made out of endoskeleton limbs. Wires hang from multiple parts of its body. There are also three eyes of its multiple-endoskeleton-like body to be seen when Mangle is in the Kid's Cove. However, just like Circus Baby, Mangle has the ability to change its appearance thanks to its illusionary device and appear more like its fixed counterpart.
Five Nights at Freddy's: The Fourth Closet
Mangle is first seen in Chapter 13 hunting Jessica and the kidnapped children though the underground of Circus Baby's Pizza until disappearing after attacking Jessica and Lisa. Near the end of the novel, Mangle captured Jacob and William Afton demands Funtime Foxy to bring Jacob to the table so William Afton can murder him.
Instead, Mangle and a mechanical mutilation Freddy attacked William Afton, along with the Baby Crawlers attacking him until the molten remains of the original animatronics rose off the table, and dragging him to a furnace, where William Afton was burned to death, killing him and freeing Michael and the other children's souls.