The Duchy of Karas is paradise on earth. The country is ruled by Roge Renard, a just, thrifty master whom everyone loves. There is only one problem in his realm—a whole bunch of undead and dark sorcerers who are striving to come to this land. To fight them, Renard creates the Secret Guard. The commander of one of the detachments—the one the duke trusts more than the others—receives an assignment: to find out what is happening in the distant province in the lands of Count Montebano. The duke of the region hasn’t had news from the same lord for a long time, but someone unknown keeps sending strange letters to the duke, asking for help. For the Duke and his unit, the matter is personal: in the forests of the foothills, the Guards—friends of the detachment commander—have disappeared without a trace. In the forests of Montebano, the undead are roaming, a huge monster created by magic, and at night a mysterious melody of a flute can be heard, followed by a whole detachment.