The chaotic opening scene gives readers a clear indication of what they’re in for: Contract killer Azure, attempting to complete a mission, is involved in a life-or-death battle with a multieyed biomachine called an Argos. “The thing’s bipedal but has six gorilla-like arms that end in half-metre-long claws,” he complains. After Azure barely dispatches the monster and kills his target, his AI assistant, Atti, informs him of his next job: protecting an elderly—and incredibly rich—woman living in a sprawling underground bunker in the middle of nowhere. “Old Woman,” as Azure calls her, isn’t forthcoming with personal details; all Azure can suss out is that she may be the target of a powerful organized crime syndicate—the same organization that employs him! Is Azure’s ultimate goal to save her or kill her? Although the worldbuilding could’ve been more comprehensive, Islington’s editing choices are brilliant—he strips away the insignificant narrative content to create a streamlined, action-packed adventure with seemingly one goal: to keep the reader furiously turning pages. The various mysteries—Azure’s murky beginnings, the tragic death of his best friend years earlier, Old Woman’s true identity, etc.—maintain the momentum and intensity. The takeaway here is the narrative potential of the characters as well as the plethora of subjects that could be explored more deeply, like immortality for the rich, cloning, and the potential to create bioengineered nightmares for “security.” Islington leaves the conclusion tantalizingly ambiguous. This novel could be the jumping-off point for a memorable series.