Taggerung (Redwall, #14)

A baby otter is kidnapped from Redwall by Sawney's ruthless band of villains called the Juska. They believe he is a Taggerung - a legendary animal said to have supernatural fighting skills. The young otter is raised by Sawney Rath as his own son and trained to be a ruthless killer, but the Redwall spirit cuts deep and as the Taggerung reaches adolescence he begins to dream of another life . . .