Somehow several years have passed since I read the first two books in this series, so a lot more time has passed for me than for the characters. But it is relatively self-contained; our newlywed heroes, Fawn and Dag, travel down river and further explore the nature of the powers shared by Dag and his people, while also delving a bit further into human nature and the relationships between two groups of people who have been brought up to regard each other with deep suspicion. Satisfying but relatively undemanding.