The Lathes are a group of three worlds in the Calixis Sector, Hadd, Hesh and Het. All three are Forge Worlds located close together in the Golgenna Reach subsector. Their highly irregular orbits result in hyper-gravitic events, allowing the manufacture of extremely high-density ammunition and blades claimed to be unbreakable. The entire system is held in fealty to the Mechanicus of Mars and non-believers require extensive permits from high authorities to visit. The population of The Lathes is estimated to be approximately five billion. The majority of these natives, the menial laborers serving the Adeptus Mechanicus are large men and women, meaty and powerful, with large bones2, often described as more Ogryn than man.