Monster Maze of Zorr: Deadly Combat (Monsters! Monsters! Version)

From publisher blurb:

This is a solo adventure designed for use with the new 2d edition version of Monsters! Monsters! Players should not bring any of the good kindreds into it. This is a tougher, more dangerous version of the maze than the original, designed to test the mettle of trolls, ogres, minotaurs, and other large dangerous humanoid creatures. Although the book features an alternate combat system it may also be played with the Deluxe Tunnels and Trolls rules.

The book features full color renders by Robin Stacy (aka Greywulf) showing every monster inside it in combat with our protagonist.