The Lathe Worlds is a supplement for Dark Heresy that reveals the secret history of the Adeptus Mechanicus, from their mysterious founding to their current struggles. Players gain access to new Alternate Careers such as the Mech-Assassin and Agent of the Lords Dragon, and arm themselves with weapons and gifts of the Omnissiah. And in a new adventure, the Inquisitors will journey to a lost comet-station, where they'll stop renegade tech-priests from heretical experiments into the Warp!