Geledh Arcanum is a forge area of the underground complex Geledh. It was built by wizard Hulêthûn as a place of enchanting charged magical items. He built it inside the Web of Magic which was a feat unto itself, for it is the only thing known to exist in that realm besides weave spiders and unlimited arcane energy. Hulêthûn gave his life making this place, staying too long in the forge putting up measures to make the place undetectable to even the guardians of Web. He was snatched by a weave spider and never heard from again.
The Geledh Arcanum is reachable from a super secret area within Geledh. This underground complex, once home of the Šukhan Legion, is now a haven of wandering monsters.