Two murders have occurred on One One One, an artificial ecosystem created by the universe’s dominant AIs to house several engineered species, including a violent, sentient race of sloth-like creatures. Under order from the Diplomatic Corps, Counselor Andrea Cort has come to this cylinder world where an indentured human community hangs suspended high above a poisoned, acid atmosphere. Her assignment is to choose a suitable homicide suspect from among those who have sold their futures to escape existences even worse than this one. And no matter where the trail leads her she must do nothing to implicate the hosts, who hold the power to obliterate humankind in an instant. But Andrea Cort is not about to hold back in her hunt for a killer. For she has nothing to lose and harbors no love for her masters or fellow indentures. And she herself has felt the terrible exhilaration of taking life…

Andrea Cort became a “war criminal” at the age of eight when an unexplained darkness invaded her soul. Now, decades later, the Devil is calling her. Employed by the Diplomatic Corps but secretly aiding the AI masters of the universe, Counselor Andrea Cort despises the powerful Bettelhines—unrepentant death merchants who have prospered from the annihilation of civilizations. Now curiosity compels her to answer a cryptic summons to their home world, where the only law is Bettelhine law. But a murder attempt greets her arrival at Xana’s orbital entry port—and far graver peril awaits aboard the elevator transport meant to carry Andrea to the planet’s surface. Trapped miles above Xana—surrounded by suspicious Bettelhines, their slavishly loyal retainers… and a corpse liquefied by a 15,000-year-old weapon—Andrea must unmask an assassin or die an equally hideous death. But the true reason for her summons—and sordid secrets weaving through her own dark past—threaten to destroy Andrea Cort more completely than the Claw of God