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Titles The Void Weaver;
The Spider God
Realm A vast underground cavern large enough to swallow entire nations
Alignment Neutral evil
Areas of Concern Construction
Worshipers Arachnid creatures, such as driders, ettercaps, and jorogumos
Cleric Alignments (1E)
Domains (1E) Artifice, Evil, Madness, Void
Subdomains (1E) Construct, Isolation, Nightmare, Toil
Favored Weapon Net
Symbol Spider perched at the centre of a web

Source: In Search of Sanity, pg(s). 64
Type Aberration
(evil, Great Old One)
CR 28
Environment Any underground

Source: The Whisper Out of Time, pg(s). 84f.

Atlach-Nacha[1] is the Great Old One of construction, futility, and spiders. In many aspects, it is dualistic: it is both and neither male or female, it constantly builds but its creations always fail, and it embodies both the spider's alien form and the recognisable shape of a human.[2][3]


Atlach-Nacha dwells in a nation-sized underground canyon connected to the underground of Leng, where it weaves an impossibly complex web to connect all of the chasm's sides. It is said that the completion of Atlach-Nacha's web will either usher in an age of insanity or allow the Outer God Abhoth to leave its own cavern, instead of having to send only spawn.[2]


Atlach-Nacha resembles an elephant-sized, black-and-red spider with long spindly legs, a disturbingly humanoid face and hair-rimmed eyes. It has also been depicted as a female drider with multiple long arms.[2]


Followers of Atlach-Nacha venerate the form of the spider, and view both the acts of building and deliberately allowing something to fail to be sacred, and oscillate between both of these urges. Atlach-Nacha's temples are often spider-infested caverns or ruins. Many of its worshippers are spiders themselves like driders, ettercaps, Leng spiders, and jorogumos. When they infiltrate human society, jorogumos sometimes take Atlach-Nacha's name for some unclear reason.[2][3]


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  1. Original Source: Clark Ashton Smith, "The Seven Geases", 1934; James Jacobs. (2016). The Elder Mythos. In Search of Sanity, p. 64. Paizo Inc. ISBN 978-1-60125-882-3
  2. 2.0 2.1 2.2 2.3 James Jacobs. (2016). The Elder Mythos. In Search of Sanity, p. 64. Paizo Inc. ISBN 978-1-60125-882-3
  3. 3.0 3.1 Ed Grabianowski, James Jacobs, Richard Pett, and Greg A. Vaughan. (2016). Bestiary. The Whisper Out of Time, p. 85. Paizo Inc. ISBN 978-1-60125-908-0