Tansy, a young hedgehog living at Redwall Abbey, attempts to solve the riddle of the missing pearls while at the same time the evil marten, Mad Eyes, desires them for himself.
Tammo, a daring young hare hungry for adventure, is sent with Russa Nodrey, the wandering red squirrel, to join the Long Patrol and defend Salamandastron against the Rapscallion horde.