I reviewed this in order to run at Halloween, as the concept has a great wandering mechanic i think would be great. While reviewing it for play, I found that there were some wording choices and order of presentation that could be tightened up but overall, this would be a great, creepy module for play.

At the time of writing, the Black Gem is the best adventure I've read in 2017.

+Opening scene is amazing, one of the best I've seen +Can be dropped into most fantasy campaigns with little effort +Serves admirably as a one-shot adventure or first adventure in a campaign. +Only nine pages and easy to digest but provides entertainment for an evening or two of gaming. +Decent writing with little of the "filler" that's common to many RPG products +Challenging for new players and grognards alike, it rewards thinking outside the box and improvization. +The Black Gem is completely free.

For 3-5 charcters of Levels 1-3. This is a fun adventure for a nights gaming. Could take about 2-3 hours to complete, depending on actions taken of course. This adventure could be very difficult & deadly, as players will not have access to their normal equipment, weapons, armor. I suggest letting the players find or scavenge a bit before they take on some of the more dangerous encounters.