The Ultimate Weapon

A routine patrol near Pluto turns urgent when a miner's broken radio message reports an immense armed vessel. Buck Kendall, a gifted scientist serving in the Interplanetary Patrol after taking a friend's bet, commands the small cruiser sent to investigate. Beyond this first alarm lies a much larger threat: the Mirans, seeking a steadier sun than their variable star Mira, have chosen the solar system as their new home and arrive with a powerful fleet.

John W. Campbell builds this science fiction adventure around the contest between scientific knowledge and overwhelming force. Conversations about mining costs give way to instrument readings, improvised defenses and battles around Jupiter's moons. Kendall and his colleagues must study unfamiliar technology while events move faster than their understanding. Readers interested in speculative engineering will find a story where power supplies, protective alloys and the interpretation of signals matter as much as nerve.