Ik'k'uox

The Ik'k'uox, also called the Ick, is a large creature of unknown origin. It was first mentioned in Changes.

Description
The Ik'k'uox was huge, the size of a bull and had a stench. It had an odd body that could move on two or four legs equally. Its flesh was spongy black like the true skin of a Red Court vampire. It's features were a mix of human, jaguar, crocodile or wild boar. It was completely black everywhere, even its eyes. It had malformed shoulders and a thick, almost intangible neck. It had a heartbeat like a big drum. It can leap thirty yards in one bound. It made no sound when it was injured.

Changes
In Changes, the Ik'k'uox was sent by the Eebs to Rudolph's house to kill off a loose end. Harry Dresden was there on a stakeout to gather information from whoever showed up to get Rudolph. Dresden ends up fighting it with help from Thomas Raith, Mouse and Molly Carpenter and her "one-woman rave spell". Thomas and Mouse double-teamed it, injured it and ran it off.

Later, the Eebs brought it and a team of vampires to attack the Chicago FBI building aiming to kill Dresden, Susan Rodriguez and Rudolph. The Eebs, the Ick and the vamps all follow Harry and Susan as they escape into the Nevernever landing in the Erlking's Dining Hall. The Erlking decrees a trial by combat. The Ick is chosen by the Eebs to fight for them. Harry killed it.