Nightshade

Nightshade was a female fox seer and healer in the army of Swartt Sixclaw. She was older than Swartt, although it's unclear by how much, and usually gave him advice to further his ambitions. Although Swartt did not treat her very well, the vixen remained loyal to him, feeling it was in her destiny.

Nightshade proved to be valuable to Swartt's conquests, as she helped him take Bowfleg's army and dispose of Balefur. She also warned Swartt of his son Veil growing and returning after Swartt abandoned him near Redwall Abbey, but Nightshade was ignored.

After the army fell at Salamandastron, Nightshade told Swartt to continue on to Bat Mountpit while she and a group of archers would pick off Sunflash the Mace, his friend Skarlath, and his Long Patrol tracking hares. As Sunflash approached, Nightshade noticed Skarlath flying over head and shot him down with a poison arrow, as she knew that Sunflash was using the bird to spy on Swartt's army. The killing proved to be a fatal error, as it enraged Sunflash, causing him to chase down and crush Nightshade to death.