Spire of Long Shadows

"The one-time seat of the demigod Kyuss" power. The ruined city of Kuluth-mar surrounds this towering, crumbling stone ziggurat, impossibly shaped like a stylized leafless tree or arcane glyph. Tales tell of foul halls beneath this monolith and, although the Wormgod has been defeated, evidence of his dark and terrible power doubtlessly still writes beneath his ruined throne."

References

Zavoda Index Entry

The Encyclopedia Greyhawkania Index page has a list of sources, abbreviations, and a link to the full index.