For two young dragons in love and the inhabitants of the islands of Angur and Lesur, life changes with the arrival of an unscrupulous magician. Using powers honed during five years of exile, he endeavours to bend the Angurians and Lesurians to his will. But he has reckoned without the resourcefulness of the Angurian dolmen-builder, Gastelois de Bois and the Lesurian explorer, Philoche du Tus. While the islands' Elders appear to be at a loss as to how to deal with the situation, these two take matters into their own hands. Seeking out the venerable magician Verman Clouet on the island of Sersur, they learn that they will have to embark on a hazardous sea voyage to enlist the help of a group of priests in a distant land. Time, however, is not on their side - it is the Autumn Equinox and they only have until the Winter Solstice...