World of Greyhawk - Myth & Magic
Continual Light Tube
Alanok had a continual light tube and chain crafted by Belrag Blackmore, an NPC Jeweler craftsman in the town of Homlett.
Cost: 700 gp
Misc: The mechanism to open and close the light tube is quiet and the sound does not carry beyond 5’.
The tube consists of a continue light coin affixed in a metal tube with a mechanism that allows the tube to open and closed.