Like Helva, The Ship Who Sang (and Nancia from Partnership, Tia from The Ship Who Searched and Simeon, who runs The City Who Fought), Carialle was born so physically disadvantaged that her only chance for life was as a shellperson. And again like those others, Carialle decided she would strap on a spaceship. Her brawn is a guy named Keff. Their mission: to search the galaxy for intelligent beings.