Upekzar

Upekzar was a small terrestrial planet counted among the Sith Worlds of the Esstran sector that was unique among the mostly barren worlds of the Stygian Caldera for its diversity of verdant biomes. The planet was most notable for the Circle of Visions, a circular ring of islands and seashore locations concentrated in the planet's southern hemisphere that hosted expansive volcanic cave systems.

The caverns of the Circle of Visions were home to the rhak-skuri, a subspecies of diplura who hunted by means of a pheromone known to cause nightmare-like hallucinations in certain humanoid species. The Sith of the Sith Empire who first settled Upekzar incorporated the rhak-skuri into their Mysteries, a series of Sith rituals that were conducted at five separate locations on the Circle of Visions and required protracted exposure to the diplurans' pheromones.

Though historically insignificant for most of its recorded history, Upekzar came to the forefront of galactic events in 44 ABY. During the Jedi Order's hunt for the rogue Force entity Abeloth and the Sith Meditation Sphere known as Ship, Grand Master Luke Skywalker and a strike team of Jedi investigated Upekzar's ruined city and its nearby cave system for clues, inadvertently rediscovering a colony of mutated rhak-skuri and springing a trap set by Abeloth that both turned the city to ash and coerced the nearby volcano into eruption.

Text and facts from the “Upekzar” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.