The thrilling conclusion to the epic middle grade fantasy series that Booklist called "a charming blend of Arthurian legend and Brian Jacques' Redwall series." Young mouse Calib Christopher is finally a squire to the Knights of the Round Table. But there is no time to celebrate. His best friend, Cecily, and Merlin's magical treasure are in the clutches of the evil Saxons. Now Calib and his human companion Galahad must venture into enemy territory...