Freedom's Ransom is the fourth novel in Anne McCaffrey's Freedom series, also known as the Catteni Sequence. The sequel to Freedom's Landing, Freedom's Choice, and Freedom's Challenge, Freedom's Ransom will please some fans of this star-spanning science fiction series, but others will find the book slow-paced, talky, and lacking in action. Freedom's Ransom ends conclusively, with no major unresolved plot lines, yet leaves space for at least one sequel.