Tallow

A tallow can barely hold a humanoid form. Its features constantly melt and reform like hot wax, and not even its bones and innards are stable.

Tallows move with a rolling, sloshing gait, can squeeze through tiny cracks, and are extremely resistant to damage. They live in desolate forests or garbage-strewn areas of cities. Tallows cannot chew, so seek soft or liquid nourishment. A tallow can subsist on tree sap, old fruit, and sun-soft carrion, but they prefer hot blood and viscera and attack such food straightforwardly when it presents itself.

The sick lands to the east of Jorvik seem to spawn an unusual number of tallows, but no single origin has ever been identified.