"Welcome back to the brash, brutal new world of the twenty-fifth century: where global politics isn't just for planet Earth anymore; and where death is just a break in the action, thanks to the techno-miracle that can preserve human consciousness and download it into one new body after another. "Cynical, quick-on-the-trigger Takeshi Kovacs, the ex-U.N. envoy turned private eye, has changed careers, and bodies, once more . . . trading sleuthing for soldiering as a warrior-for-hire, and helping a far-flung planet's government put down a bloody revolution. But when it comes to taking sides, the only one Kovacs is ever really on is his own. So when a rogue pilot and a sleazy corporate fat cat offer him a lucrative role in a treacherous treasure hunt, he's only too happy to go AWOL with a band of resurrected soldiers of fortune. All that stands between them and the ancient alien spacecraft they mean to salvage are a massacred city bathed in deadly radiation, unleashed nanotechnolgy with a million ways to kill, and whatever surprises the highly advanced Martian race may have in store. But armed with his genetically engineered instincts, and his trusty twin Kalashnikovs, Takeshi is ready to take on anything--and let the devil take whoever's left behind.

《副本》由英国著名科幻作家理查德·摩根著。从理论上说，意识的存储和备份让人类实现了长生不老的梦想。当躯壳衰老、死亡时，存储的意识备份可以重新载入一具新躯壳，意识的主人也将因此重获新生。这个过程周而复始、连绵延续以至无穷。但这只是理论。在现实中，只有最富有的人才可能不断地将自己的意识存储、备份、更新。除此之外，还有一批身负特殊使命的人，意识存储让他们能够不计生死、自蹈死地。星际调查局探员科瓦奇就是这样的人。他的意识被跨星际传输到地球。载入一具新躯壳，调查一桩杀人案。被害者是地球的一位富翁。下载意识复活之后，这位富翁决心查出凶手，查明在他上一次意识备份到被杀害期间，到底发生了什么事。杀人、换躯、性、死亡、重生……在意识存储的新时代，古老的犯罪和侦查过程以令人难以想象的新面貌实施、展开。