This chunk of yellow crystal glows like a torch.
Dagon’s eye sheds normal light in a 20-foot radius and increasing the light level for an additional 20 feet by one step, up to normal light. The crystal floats in the air 1 foot above any solid surface and can be moved with little effort.
If any form of Celestial writing is placed in the light of Dagon’s eye, the words erupt into a searing fireball that deals 6d6 points of fire damage to all creatures within 20 feet of the writing. Creatures in the area take only half damage with a successful DC 14 Reflex save. This ability functions once every 10 minutes.
Pathfinder Adventure Path #124: City in the Deep © 2017, Paizo Inc.; Authors: Amber E. Scott, with Alex Greenshields, Mikko Kallio, Mark Moreland, Tim Nightengale, and Kalervo Oikarinen.