Loamhedge - Brian Jacques

 Book summary -

In the book, young haremaid Martha Braebuck has been chair-bound since Dibbun - hood and no beast has any idea why. Martin The Warrior's spirit sends two former Redwall
warriors, Bragoon and Saro, to the old Loamhedge Abbey to discover a
secret that could change Martha's life. Meanwhile, the badger Lonna
Bowstripe hunts the pirate Raga Bol and his horde for vengeance.