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The Caverns of Thought were the divine realm of Ilsensine, the illithid god of magic.[1][2][3]

Geography[]

According to the Great Wheel cosmology, the Caverns of Thought were located deep underground beneath the Outlands and were connected to the realm of the beholder deity Gzemnid.[1][2] The World Tree cosmology established the realm as part of the fiendish plane of the Deep Caverns.[3]

In both cosmologies, however, the Caverns of Thought were described as a hostile place wrought with inaudible yet clear and powerful thoughts that slowly drove its visitors mad until they were reduced to thoughtless zombies.[1][3] This effect was a consequence of Ilsensine's power prying into the minds of the realm's visitors in search of their secrets.[4]

The realm was a labyrinth of tunnels that were lit by the faint glow of fungus. It was avoided even by fiends.[2] The dwarf inhabitants of the nearby realm of the Dwarven Mountain also avoided digging their tunnels too close to the Caverns.[1]

The only creatures that dared visit the realm were motivated by the search for knowledge that Ilsensine possessed. However, the price he demanded was high, often leading to the visitors' losing part of their own minds.[2]

Appendix[]

References[]

  1. 1.0 1.1 1.2 1.3 1.4 Colin McComb (October 1996). On Hallowed Ground. Edited by Ray Vallese. (TSR, Inc.), pp. 136, 176. ISBN 0-7869-0430-5.
  2. 2.0 2.1 2.2 2.3 2.4 Jeff Grubb (May 1995). A Player's Primer to the Outlands. Edited by Ray Vallese. (TSR, Inc.), p. 29. ISBN 0-7869-0121-7.
  3. 3.0 3.1 3.2 3.3 Richard Baker, James Wyatt (March 2004). Player's Guide to Faerûn. (Wizards of the Coast), pp. 148–149. ISBN 0-7869-3134-5.
  4. David "Zeb" Cook (1994). Planescape Campaign Setting, Sigil and Beyond. Edited by David Wise. (TSR, Inc), pp. 32–33. ISBN 978-1560768340.

Connections[]

The Concordant Domain of the Outlands
Realms
Caverns of ThoughtCourt of LightDwarvish Mountain (Deepshaft HallSoot HallStrongale Hall)Flowering HillGzemnid's RealmHidden RealmLabyrinth of LifeMarketplace EternalMausoleum of ChronepsisPalace of JudgementSemuanya's BogSigilSleeping LandsTir na Og (Deep Forestthe Great SmithyHouse of Knowledgethe PinnacleTir fo Thuinn)Thoth's EstateWonderhome
Gate-towns
AutomataBedlamCurstEcstasyExcelsiorFaunelFortitudeGloriumHopelessPlague-MortRibcageRigusSylvaniaTorchTradegateXaos
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