From the publishers blurb:
Embark on a journey to the ancient and mysterious Temple of Yargolith, where forbidden knowledge and dark powers reside. Brave treacherous ruins and face off against deadly cultists as you uncover the secrets of the temple and confront agents of the powerful entity known as Yargolith. Beware, for those who dare to enter the Blasphemous Temple may never return.
The Blasphemous Temple of Yargolith is old school fantasy adventure designed for use with Necrotic Gnome’s Old-School Essentials rules set. This giant 114-page zine includes:
Information about the people and places found in the jungle village of Olkoth, which has recently been experiencing strange occurrences that they believe are connected to the nearby temple of Yargolith.
Hex crawl rules for the party’s journey through the jungle to the temple.
A 60+ room “dungeon” describing 4 temple levels and the connected cave system.
Two new Old-School Essentials character classes: The Jungle Elf & The Shadow Hunter
New spells, monsters, and magic items.
9 Pre-generated characters for groups who want to run the adventure as a one-shot or short campaign.