The Spellcoats (1979) is the third published novel in Diana Wynne Jones's series Dalemark Quartet, but chronologically the first. The story takes place several thousand years before Cart and Cwidder and Drowned Ammet. The time period is referred to as "prehistoric Dalemark" because by the time of the other books, only legends remain from this time. The people of prehistoric Dalemark do not have a written language, but some know how to write by weaving in a language of runes using yarn of many colours and textures. Plot Tanaqui is a young woman. She resides in a small town called Shelling. She and four siblings look different from the rest of the townsfolk. Their family has three idols—the so-called Undying. The country is invaded by Heathens. They are the ancestors of the people of Dalemark in the other three novels. Tanaqui and her siblings flee to avoid being killed by the people of their own village; they physically resemble Heathens. The Spellcoats is not a diary, nor is it "told" as many stories are. It is woven. Tanaqui weaves a story into a "spellcoat" that she weaves. The first spellcoat tells of how the five siblings (Gull, Robin, Hern, Tanaqui and Duck) traveled downriver on their boat. First, they encounter the mysterious magician Tanamil, then the Heathen king Kars Adon, and finally, at the sea, the evil mage Kankredin, whose aim is to take over the power of the river by taking over the five children's souls. The second spellcoat tells how they escape from Kankredin, but then the five siblings are captured by their own King, "the king of the natives." This king has lost his kingdom. He is bivouacking with the remains of his army trying to avoid the Heathens. The King confines the children because he needs one of the children's idols to assist him. Tanaqui continues to weave during her confinement with the King, she realizes that the spellcoats that mages wore gave them powers that were woven into their spellcoats. This convinced her that the words woven into spellcoats will have the power to defeat Kankredin. Realizing that Tanaqui is the only one able to stop Kankredin and his mages with her weaving, her elder brother Hern convinces the combined forces of their own people and the Heathens to take a stand, and hold off Kankredin while Tanaqui completes the second spellcoat. Tanaqui weaves frantically