Black Squares of Ungevick

From PathfinderWiki

The Black Squares of Ungevick are one of the cyclopean monuments of ancient Thassilon, built with the labor of enslaved rune and stone giants.[1] They are located off the southern coast of modern Varisia, in what was the Thassilonian nation of Eurythnia.[2]

The squares are believed to have been one component of a necromantic engine built by Zutha, and remains haunted by incorporeal undead.[3]