Doom of the Hellcaller Prince

From publisher blurb: Venture into the unknown crypt of the lost ancients & discover the nations that vie for mastery in the penumbral catacombs hidden beneath an unsuspecting town! Witness the diabolocial infestation of one being's mind & the ruin of a once hopeful land! Experience the new & bizarre monstrous entities that will numb th mind & expand conciousness alike! This is a short - 2-3 session adventure for Low-tier Game of the North characters - or for characters of level 1-3 in a similar OSR style game.