Inquisitor Amberley Vail, best known for chronicling the escapades of Commissar Ciaphas Cain, follows the trail of smugglers of alien technology, and finds herself in the middle of something much bigger. An artefact of an ancient race leads Inquisitor Vail and her warband into the depths of an underhive, where more than just mutants and gangers lurk in the darkness. Will Vail survive to tell Commissar Cain about this adventure? Read it because Inquisitor Vail has been a supporting character in loads of Ciaphas Cain tales (in fact, she’s the one who adds the sarcastic footnotes), but this is your first chance to see her in action as the star of the story.