In the ancient past, four brave heroes banded together to destroy a terrible evil, giving their lives to save countless others. But now their eternal rest has been disturbed by the Cryptmaster, a capricious necromancer in whose thrall they must ascend through the buried strata of the city above them - the gloomy Bonehouses, mysterious Sunken Sea and freakish Downwood.

With the enigmatic Soulstone in hand, the four adventurers must recover their memories, solve whimsical puzzles and defeat out…