Leviathan, a monstrous berserker killing machine glowing with a mysterious blue aura, is menacing the Milkpail Nebula. Following on a long history of destruction, the great blue berserker’s latest strike annihilated the colony Shubra. Among Shubra’s many victims is spaceship captain Niles Domingo’s daughter. Now the great berserker has taken every member of Niles’ family and the captain will have his revenge. Setting out with only his ship and crew, Niles intends to hunt down the giant killer. With the cooperation of three distinct human life themes, Niles may have a chance for his revenge. But living for revenge has a price, a very high price.

Presents a series of short science-fiction stories that tells of encounters between humans and the intelligent, self-aware death machines known as the Berserkers.

A legacy of a war in a distant part of the galaxy, the Beserkers, a death machine have come to Earth to kill all life.

Master storyteller Fred Saberhagen continues his bestselling Berserker© series, detailing humanity's war with the dreaded juggernaut-like machines programmed to destroy all life in the galaxy. In the Twin World planets, Prairie and Timber, Plenipotentiary Gregor is determined to serve his government. Even if it means executing innocent Huvean hostages, invaders from another planet. And even though Gregor's granddaughter, Luon, is in love with Reggie, a Huvean. But now the Berserkers are threatening the Twin Worlds crashing a scoutship, capturing the planets' president, and reprogramming his brain to suit their violent agenda. And only the Huveans, in a desperate reprieve, can save the Twin Worlds' populace from annihilation.

Independent pilot and sometime berserker hunter Harry Silver is being hounded by the Space Force on suspicion of possession of an illegal, high-powered weapon. To avoid confiscation of his beloved ship the Witch, Harry agrees to a quick evacuation of a trio of refugees from the doomed Hong’s World. Destination – Maracanda, an azlaroc-type body, a curious non-planet where geography seems more like geometry and the soil itself can be a drug. Maracanda’s geography has the attention of berserkers, rogue killer machines programmed to destroy all life, especially human life. With help from ‘goodlife’, the berserkers could turn the strange combination of neutron star, black hole and Maracanda’s extra-ordinary geography into massive galactic destruction. Harry teams with a woman disenchanted with her fanatical husband and an accidentally helpful smuggler acquaintance in an attempt to save the galaxy. A grand military space story with engaging characters and a strikingly original and imaginative setting.

 An ancient berserker, a gigantic space going killer machine programmed to destroy all life, seizes a space laboratory devoted to preserving a vast number of human zygotes. The zygotes are being stored for retrieval and growth in a future colonization project. Captain Dirac Sardou, whose wife and zygote were on the space vehicle, is obsessed with pursuit of the berserker. During the chase, mysteriously the laboratory, Captain Sardou’s ship, and the berserker disappear. Three hundred years after the disappearance, evidence of the missing vehicles and the damaged berserker is found. The would be rescuers are confounded. Why didn’t the berserker destroy the Captain’s ship? Why hasn’t the berserker destroyed the vessel filled with nascent life? A fast paced space adventure.