As the Kingdom of Araluen prepares for war against Morgarath, Will and Horace accompany Gilan on a mission to Celtica. But Celtica's villages and mines are silent. It is only when the three find an exhausted and starving girl called Evanlyn that they learn why: Morgarath has sent his foul creatures to enslave the Celts.
As Gilan rides swiftly back to Araluen to report this news to the King, Will and Horace discover the true purpose behind Morgarath's actions. The Kingdom is sure to be defeated in a surprise three-sided attack – unless the two friends can somehow intervene.