MAX Stack x 1
A makeshift torch made from glowing goo and bone
The tunnel debouched into a wide room before the moonlight played out, an empty cavern of no great dimensions, but with a lofty, vaulted roof, glowing with a phosphorescent encrustation, which, as Conan knew, was a common phenomenon in that part of the world. - Jewels of Gwahlur
Scholars and adventurers have long known of the properties of certain glowing plants that can be found in subterranean caves and hollows. Though some barbaric tribes swear that such places are demon-tainted and ghost-haunted and avoid them at all costs, others swear that they provide healing or other medicinal properties.
This smokeless torch, created from the bones of some unfortunate creature and a bundle of glowing plants can be used underwater without losing any of its efficiency. However, the glowing properties of the plant are drawn from the soil in which it is rooted. Once uprooted it loses its glow over time.