Brainship #4: The City Who Fought by Anne McCaffrey

SHELLPERSON WITH A MISSION
Simeon was bored. Not with being a shellperson—like Helva, The Ship Who Sang, and Tia, The Ship Who Searched, he rather pitied “softshells” their mayfly lives and absurdly limited senses—but with running the mining and processing station that made up his “body”. So when the arrival of an out-of-control refugee ship interrupted his latest wargame (Simeon’s hobby) the excitement was welcome.

Then the refugees told their story: attack by space barbarians. Soon, long before any help could arrive from Fleet, Station SSS-900 would be in the Fist of High-Clan Kolnar, and nobody would be bored, least of all Simeon. If anyone was to survive, somehow he must transmute his hobby into the real thing, and become—

The City Who Fought.

Previous titles in this bestselling series include The Ship Who Sang, The Ship Who Searched, The Ship Who Won, and PartnerShip.