In a sector of the Galaxy occupied by Earth-descended people, one Berserker computer has suddenly and mysteriously developed a tactical strategy unlike anything the human opposition has seen before. Shiva, like the Hindu god of destruction after which it was named, annihilates entire colonies with the help of its fiendish subordinates. When a decision is made to destroy the destroyer, neither side is prepared for the incredible risks that emerge as the attack becomes imminent. Can either side face the possibility that something wholly unexpected and eerily familiar lies gnarled within the steel?

Amazon.com Review
This is another installment in Fred Saberhagen's ongoing saga of war between humanity and the almost-sentient death machines known as Berserkers. For long years the war has been at a stalemate, with humanity managing to fend off the bulk of Berserker attacks and even strike back from time to time. But on a remote planet called Hyperborea, things are about to change. The Berserkers have developed a new tactical computer that has proven unbeatable, and it could spell the death of all living things in the galaxy. A last-ditch effort to destroy the machine, code-named Shiva, has failed, and now the only thing that stands between Shiva and certain victory is a handful of humans that circumstance has thrown together on Hyperborea. In this Berserker book, Saberhagen returns to all of the things that have made his series such a mainstay in science fiction. His heartless enemy machines are as treacherous as ever, and the fragile humans who most stop them may not be perfect, but they are resourceful. --Craig E. Engler