Monsolar was a backwater planet in the Alzoc system, with the the Sujimis sector of the Outer Rim Territories. The planet was home to the Syrox species of parasitic worm, which laid its eggs in the planet's rivers, where they were consumed by other animals and grew within their new hosts. The sentient natives of the planet lived in several warring tribal communities, most of which either worshipped or feared the Syrox. Waleed Nagma was a native of this planet, but after becoming infested by a Syrox he ended up in the Cog Hive Seven prison.