Lair of the Rat Kings is a full campaign sourcebook detailing a new and exciting part of the realms of Pugmire: The Underneath. It contains not only everything you need to know about the Underneath, but also has information about making rodent player characters (along with their psychic powers), advice on how to run a subterranean campaign, a complete adventure, and a massive number of locations, set pieces, and encounters.
Our main goal, besides being Good Dogs and Resilient Rodents, is to enable Onyx Path to create a fully-developed PDF version of Lair of the Rat Kings. With your support we will also make this book available for purchase in Print-on-Demand hardcover formats offered by DriveThruRPG. The cost of printing and shipping a PoD hardcover book is not part of your pledge amount, however Crowdfunding backers will receive a special link allowing you, should you wish, to order the Print-on-Demand hardcover version at a discounted price.