From PathfinderWiki
Cytillesh spores
(Alchemical item)
Type Alchemical reagent and poison

Source: Alchemy Manual, pg(s). 11

Cytillesh is a dangerous type of Darklands fungus also known as brain mold. It gives off a bright blue glow equivalent to torchlight.[1]


Cytillesh is prized by the deros, who appreciate its benefits and are not fazed by its severe detriments, which include stillbirths, birth defects, and insanity. As such, it commonly grows on the walls and ceilings of dero communities. Not all of its health effects are harmful, however, as prolonged exposure can purportedly slow aging by half. Derros also believe it provides mental enhancement and is responsible for creating exceptional deros they refer to as savants.

Derros brew a powerful poisons from the mold known as cytellish extract,[2] and cytillesh oil.[3] Dero alchemists frequently use the spores of the cytillesh fungus in their crafts. The spore is a versatile alchemical reagent and often combined with other poisonous elements to create deliriums, hallucinogens, and psychotics. As an alchemical power component, it is associated with boosting the effectiveness of enchantment spells, and costs 5 gp per dose.[4]


For additional resources, see the Meta page.

  1. James Jacobs and Greg A. Vaughan. (2008). Into the Darklands, p. 12–13. Paizo Publishing, LLC. ISBN 978-1-60125-140-4
  2. James Jacobs, Rob McCreary, and F. Wesley Schneider. (2010). Classic Horrors Revisited, p. 8. Paizo Publishing, LLC. ISBN 978-1-60125-202-9
  3. Logan Bonner et al. (2019). Pathfinder Core Rulebook, p. 550. Paizo Inc. ISBN 978-1-64078-168-9
  4. Jason Nelson, Patrick Renie, and David N. Ross. (2014). Alchemy Manual, p. 11. Paizo Publishing, LLC. ISBN 978-1-60125-605-8