On a moonless night, two rats follow hypnotic lights into the forest, never to be seen again. Such is the power of the Doomwytes, sinister ravens led by the deadly Korvus Skurr. And when the young mouse Bisky persuades the creatures of Redwall to go in search of a fabled treasure, hidden long ago by one of the abbey's most notorious thieves, they do not suspect Skurr and his ravens will be vying for the same prize. . . .