Times are difficult in Zarren because war is raging and the village is besieged by knight Hugo Van Craendonck. He was accused of high treason by Count Reinier Van Nevele and banished from Zarren. The situation is being studied by the inhabitants of the planet Balmodor. These crystal beings decide to send a delegate to Earth in the guise of a woman, the young Irena. She must find out why people go to war. She is taken care of by magister Maesius and his resident helper Katrijn and his student Geeraert.