Eldermancy: Sunken Isles IG and commanders is a system

and commanders is a system to link all your games in a grand campaign that follows the events of the Hundred Days

It contains

Due to the relatively short amount of time at the front

each sharing ideas drawn from their experience of playing and running Call of Cthulhu

Eldermancy: Sunken Isles IG and commanders is a systemThis beautiful hardcover version of the book offers over 300 pages of new D&D5e sub systems (resource system, sailing system, magical tattoos, and more), player options, unique monsters, all tied together in an epic Dungeons and Dragons 5e adventure campaign encompassing levels 1 through 20. This latest book from Eldermancy brings Runesmith's epic imagination to the forefront with guaranteed fun for your table in an adventure designed to level up