The Ship Errant(1996)

Mercedes LackeyAnne McCaffreyMargaret Ball

In the sequel to The Ship Who Won, written by Nye with Anne McCaffrey, Carialle and Keff, the brainship and brawn who discovered intelligent life on the planet Ozran, now serve as couriers for the "globe-frogs", to return their new friends from whence they came. But to get there, they must transit a sector where Carialle experienced a trauma so intense it nearly destroyed her mind.

And now all the evidence is indicating that the slime who caused Carialle such pain in the first place may be the very Globe-frogs she and Keff have just become friends with...