Empire of Souls
A massive cauldron found in the basement of the mansion of Zward Encer. It is filled with the same black liquid that is commonly found around Shadowfell infestations. Inside a gruesome sight unfolds.
Four ribcages surround a beating human heart. Black tendrils connect the heart to the ribcages. Once freed from the black ooze, the ribcages begin rattling loudly, and the ooze begins bubbling. If allowed, the ooze starts forming a vague humanoid shape around the ribcages.