The Forgotten Cairn by Joseph Mohr is a role playing game supplement published by Old School Role Playing for use with OSRIC. As such, it is covered by the Open Game License and some parts were considered to be Open Game Content as a result.
The supplement is available as a 33 page Pay What You Want PDF from DriveThruRPG. Two pages are the front and rear covers, three the front matter and three the Open Game License.
The opening paragraphs explain that a thief recently returned from a recently discovered cairn that killed all his companions. He wants a share of the spoils for giving the location of the entrance.
For the Dungeon Master explains where the cairn is and that the adventure is aimed for six or more characters of 9th to 12th level, with a good mix of class and abilities and at least one magic item per character.
Random Encounters in the Hills has a d6 table of encounters.
Entrance to the Forgotten Cairn describes the cairn’s entrance, then has a d12 random encounter table, though there are only three encounters, and finally describes the cairn’s locations. This has the usual assortment of traps, monsters and treasure, with there being a lot of undead amongst the monsters.
Who Built this Cairn? has some details on the ancient civilisation that created it.
New Magical Items has some new items.
New Monsters has some new monsters, including a minor demon prince.
New Spells has a single new spell.
The final page of content has a map of the cairn.
The Forgotten Cairn in Review
The PDF lacks bookmarks and is long enough with enough different sections that these would have been useful. Navigation is okay. The text maintains a single column format and some errors were noticed. Bar the map and covers, there are no illustrations. Presentation is okay.
The adventure will be a lot more difficult for any party that lacks the ability to deal with undead, given that the tomb is full of them. There are also a couple of other major monsters to defeat, that won’t be a pushover; the adventure can be very dangerous. It also has details on an ancient civilisation that may not fit in with the mythology of a campaign setting, though the existence of the civilisation is said to not be canon. The Forgotten Cairn can be found by clicking here.
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