Salamandastron

Salamandastron was published in 1992. It is fifth in publication order, and ninth in chronological orderin the Redwall series.

Summary
The young badger Mara runs away from her home, the mountain of Salamandastron, displeased at her father Urthstripe's treatment of her. Urthstripe, while worrying about her, is forced to defend the mountain against Ferahgo the Assassin and his troops.

In Redwall Abbey, the squirrel Samkin is falsely accused of murder. With his mole friend Arula, he sets of to retrieve the sword of Martin the Warrior, which had been stolen by two vermin. Not long after he leaves, the denizens of Redwall realize they are contracting Dryditch Fever. The otter Thrugg and Dibbun named [[Dumble] quest for the fabled Flowers of Icetor to heal the afflicted. Together with some avian allies, they are able to save the Abbey.

Mara and Samkin's paths eventually cross, and the sword is retrieved. They encounter a badger named Urthwyte, who is actually Urthstripe's twin brother. When the entire group returns to Salamandastron, they find that Urthstripe, seized by the Bloodwrath, has leapt from the top of the mountain, taking Ferahgo with him. Urthwyte stays on as Badger Lord; Samkin and Mara go back to Redwall.