This module has the PCs being asked by a venerable sorceress to complete an ancient song that will banish the monsters the plague this region. There is a short description of the town of Springvale and the sorceress Liniakatra, and the rest of the adventure is a dungeoncrawl. The players presumably learn the first two verses from Liniakatra and then they must venture into the underground temple housing portals that spring forth a variety of monsters to learn the third verse and seal the infernal portals forever.This is a fun adventure, but short. There are some interesting conundrums and encounters inside the dungeon itself, but some GMs might be turned off by the simple dungeon design. The whole structure of the dungeon and it's denizens reminded me very heavily of playing Gauntlet when I was younger, but it's different enough that most players might not notice the similarities. There is a lot information here to build off as well, with the portals that disgorge otherworldly monsters to the shrine in the last level.
You can purchase both pdf and print versions of "RK3 - The Third Verse" at DriveThruRPG or just a print version at Lulu
Johnstone Metzger also has a blog and a Patreon campaign for writing up monsters in Dungeon World and Labyrinth Lord stats
Tony Dowler also has a blog and a Patreon campaign for creating maps
This book has a fairly straightforward sounding adventure: some monks in a monastery, nestled in a mountainous territory plagued with extraordinary monsters, have had a sacred artifact stolen from them by some wizards who are using it to power a far-reaching and nefarious ritual that will affect every living creature in the surrounding region. Find the wizards, stop their ritual, and get the artifact back. Pretty simple really, but not quite.