Enter the Whalefall

Enter the Whalefall is a system agnostic fantasy adventure inspired by whalefalls, transient ecosystems created when a whale corpse sinks into the deep sea. 

Adventurers find themselves drawn to the coastal regions of the Astral Sea, an area of high magic, where shorefolk trade with undersea inhabitants. The region is currently menaced by a myriad of necromantically animated marine life. Why? because a bunch of oceanic necromancers are down in the abyssal depths trying to reanimate and control a dead whale god and then open a gate to the Primordial Sea. [someone should probably go down there and stop that...]