One day while Abruc the otter and his son Stugg are out foraging for food, they find two badgers; an old one, dead, and a giant one who is barely clinging to life.
After Bragoon enters the camp (and Skrodd accidentally kills Burrad) they tell the gang that they must leave Mossflower Woods and never return.
After an escapade of using a ladder to scale one of the windows, one sea rat manages to enter the Abbey and is about to kill Carrul when Martha suddenly lunges out of her chair and pushes him away, realising she now has the ability to stand and all she needed was will power.
When Lonna arrives at Redwall, he manages to kill many sea rats, and due to the efforts of the now mobile Martha, gets inside of the main building and is able to snipe out the crew from there.
In a last-ditch attempt to kill the badger, Raga Bol tricks Lonna into coming out to the open where a group of spear throwers wait to slay him.
The expedition to find Loamhedge has finally arrived at the dead Abbey, but all the things in Abbess Sylvaticus' grave have rotted away to nothing or turned into dust.
Rather than return empty pawed, Bragoon and Saro tell the young ones to wait outside while they write their own cure, essentially saying that one just needs faith in oneself.
In an attempt to allow Horty, Fenna, and Springald to get to safety, Sarobando and Bragoon hold off the oncoming forces, eventually pushing the bridge over the edge of the abyss.
Ten seasons after they return to the Abbey, we find that Springald has become Abbey Recorder, Fenna has become Abbess, Horty has joined the Long Patrol at Salamandastron, adding the nom de guerre 'Longblade' to his name, Lonna has become ruler of Salamandastron, and Martha sings and dances on the walls every season in memory of the two who left to try to find her a cure.