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The depraved gnoll shaman Grirr Duskclaw lurks in the lightless dungeon below the Hill of the Sunken Skull. There in the endless dark, he toils over the blasphemous, blood-soaked creation of a legion of bloodspawn treants he plans to unleash on the nearby human settlements. A chance discovery leads to the characters learning of the Hill of the Sunken Skull, but not the horrors lurking beneath, and sets them on the path to bloody confrontation and death.

Designed for The Lonely Coast but easily adapted for virtually any other setting.

This System Neutral Monstrous Delve presents the tree-obsessed gnolls of the Bleached Skull tribe, along with a detailed overview of the Hill of the Sunken Hill dungeon.

Design Creighton Broadhurst Cartography Dyson Logos Art William McAusland, Dave Peterson and Marc Radle

Free Resources

Get a free preview of the tribe here and download this supplement’s maps here.

About Monstrous Delves

A Monstrous Delve is not a “proper” adventure. Rather, it is a starting point for your creativity. We provide a flavoursome overview of the delve and the monsters therein. You provide their stats and their treasure and pick a suitable adventure hook to draw the characters to the place.

Monstrous Delves are designed so that you can add them to your campaign with the minimum of fuss and effort. Have the characters got lost (deliberately or accidentally)? Have they decided to explore an area of wilderness you have yet to detail? Do you need a side trek or diversion? Simply drop a Monstrous Delve in their path!

Monstrous Delves are system-neutral; however, it is impossible to avoid all game references. A few generic terms such as elf, orc, fighter and cleric appear in the text. Modify these as necessary to suit your game and campaign world.