Pride’s Folly is the current name of the promontory housing Gwen’s laboratory and the RealityEngine. Pride’s Folly appears to consist of a mountain, a (currently devastated) valley, and an extensive underground laboratory.

Prior to Gwen’s (first) fall, the reality had an other name.

After Gwen’s fall, the promontory was assigned to Neville for cleanup by King Osric but fell under Julian’s control.