Cart and Cwidder is a fantasy novel for young adults by the British author Diana Wynne Jones. It is the first book published in the Dalemark Quartet, although chronologically it is the third in the series, coming in time hundreds of years after The Spellcoats and a year or so after Drowned Ammet.

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.