From publisher blurb:
A deadly crawl through dank and dangerous sewers can make for a very memorable part of any TTRPG session, whether it’s part of a city-based campaign or a standalone adventure.
The Danger & Darkness Below provides a complete set of tools to create a diverse and deadly challenge for your players, with a wide range of possible encounters, hazards and obstacles alongside original monsters, items, and treasures that they may discover in the mire. Included as a bonus is an original Character Class for Shadowdark, ideally suited to finding a way through the sludge – the Grimer.
The Danger & Darkness Below was created alongside Beneath the Arena of Blood, the first adventure in our Times Undreamed Of… series which is also now available. Times Undreamed Of is an original dark fantasy setting and the first adventures are set in the dangerous City-State of Ib-Hiore, domain of the vile Priest King Vhag Vaggo.