From PathfinderWiki

Ihyssige is a pristine, unmarred, ivory-white stone monolith that rises from a stagnant pool of crimson algae in Stygia. The eight letters 'I-H-Y-S-S-I-G-E' are marked upon the stone, and are understood by everyone who looks upon them.1


  1. John Compton, Adam Daigle, Amanda Hamon Kunz et al. (2017). "Fiendish Realms". Book of the Damned, p. 141. Paizo Inc. ISBN 978-1-60125-970-7