Taggerung, Published in 2001 by Brian Jacques, Philomel Books

"In which the otter Taggerung, having discovered that he is too pure of heart to live and fight beside the vermin clan who raised him, embarks on a journey to find his true home and family . . . "

This is the 14th book in the series. It is a good story. Boorab the Fool is my favorite character. I always like the hares, appetites and all, plus all the cracks made about them and by them.