Shadow Tomb

A warren of undead and traps surrounding (and in some cases, forming) another, more powerful eldritch engine, the Shadow Engine. The Tomb is located in the far reaches of the Shadowfell, accessible only through the city of Moil. It seems there is a connection between the Tomb, and Acererak, though the exact nature of this connection is unclear.

Shadow Tomb

Tomb of Horrors ArchangelViper