"The Mosidian Temple" is an adventure that I wrote in 1983, when I was between eleven and twelve years old. It is presented here as-is, without any adult meddling except for (1) an introduction written by me 40 years later, and (2) the OGL to make it all legal.

WARNING: The adventure is broken, very flawed, and likely unplayable "as written." It is provided here as-is, as high resolution scans from the original printing, without any adult meddling or alteration. It is the brain dump of a 12-year-old kid who didn't know any better; don't expect Gygaxian-level splendor here. It exists because 12-year-old me thought it was awesome, and I have to admit that's a pretty low bar.

Plot summary? Not sure I can give you one... it's a dungeon crawl, similar in style to Tomb of Horrors or White Plume Mountain, likely even more lethal if you can believe that. There's an ungodly amount of treasure, and there isn't a single room or keyed location that doesn't defy logic, reason, or even physics.

What level is it for? I'm not sure. Suffice to say that first level characters won't make it through the front door. I deal out tons of damage very liberally, and sometimes I even allow a saving throw.

I can only assume that it's compatible with Advanced Dungeons and Dragons 1st Edition, or maybe something in the OSR. Honestly, I'm not entirely sure.

Included with the core adventure is a write up on the titanic dragon Rahamat and his "gemstone army", along with some additional supplemental monsters. It's not necessary linked to the original adventure, but they were packaged together so consider it a bonus.