The Crypt Of The Heretical Botanist is a short, linear dungeon crawl for Mork Borg that's dripping with substance and flavor.
Crypt's is 6 pages, with big, splashy, vibrant aesthetics. Interestingly, it uses that soul-searing yellow as its dominant color and default white to counterpoint it, and it looks nice! The white makes the text hyper-readable, and the yellow as a page fill makes the book aggressively attention-grabbing. There's also a lot of custom graphics and maps throughout, and they give a great sense of character and place to the adventure.
Contents-wise, there's a lot here. Roll tables for rumors, new enemies, cool items, and an optional boss with a really mean but clever gimmick. The dungeon has a solid plant theme, but it's not one note, and there are some other weirdnesses present. However, the dungeon's one major trap and puzzle are quite brutal, and it feels quite plausible that the PCs might leave early due to heavy casualties or getting stumped. If your group likes really classic osr adventures, you'll have a great time here.
For parties that do reach the bottom, there are branching endings based on the party's choices, and a heck of a campaign hook in the form of a basilisk-killing poison.
Overall, Heretical Botanist cleaves *very* close to Mork Borg core in its tone. There's no deliberate wackiness in its writing. It has a solid sense of atmosphere and gloom. And death within its pages is very easy to come by. If your group likes somber and deadly and you're looking for a drop-in adventuring location, a one-shot, or a campaign hook, Crypt Of The Heretical Botanist is a really solid choice and absolutely worth adding to your mork library.