Caves of Siluri
The Caves of Siluri is an extensive, air-filled cave system located at the bottom of the Ordocan Ocean of Primoria. It is home to entire ecosystems, completely isolated from the rest of the planet. According to local myth, the life support system of an starship that crashed in the ocean millennia ago is responsible for keeping the air breathable.1
References
- ↑ . “Alien Worlds and Cultures” in The Thirteenth Gate, 48. Paizo Inc., 2018