Shadowfell Anchor

A large, oblong piece of obsidian.

The Mad Shadow Science Crew employed some mercenaries to retreieve it (noted in the Mad Science Journal).

We discovered it in the large experiements chamber of the Mad Science Cave, and subsequently destroyed it.

Upon destruction it sucked Knuckles into the Shadowfell, where we had to retrieve him.

The Mad Shadow Science Crew discovered they could increase the power of individuals by chipping pieces off the stone and inserting them under the flesh.