Droid Engineer cave

The Droid Engineer cave was a small cavern network located on the planet Lok which, as the name implied, was the home of the female Mon Calamari droid engineer Sardeya Elgrin, as well as various droids such as the IG-86 sentinel droids and the Droidekas. Presumably, the Alliance to Restore the Republic may have used at the very least the general vicinity of the cavern as a relay point for captured Imperial prisoners by 1 ABY, as it was one of three locations that Colonel Darkstone dispatched an Imperial unit to locate prison transfer logs in an attempt to rescue Doctor Bledsoe, the others being the Palace of the Woolamander on Yavin 4 and the Mokk Stronghold on Dantooine.

Behind the scenes
The Mokk Stronghold was a location in the 2003 massively multiplayer online-role playing game Star Wars Galaxies: An Empire Divided, prior to the game's closure on December 15, 2011.