The Rogue Crew

The Rogue Crew is a children's fantasy book, written by Brian Jacques in 2011. It is the 22nd book in the Redwall series. It is the last book in the series too, because Jacques died in 2011.
Plot.
An evil animal called a Wearat is coming to take over Redwall Abbey. The hares of the Long Patrol army and the sea otters called the Rogue Crew have to fight this horrible creature and save the land of Mossflower.