Susan Cooper’s classic fantasy series takes us into a world where the forces of the Light battle against those of the Dark, but these are also coming-of-age stories in which children are at the forefront of the conflict. Deeply rooted in the folklore of the British landscape, the narratives are often set in spaces encoded in ancient wisdom and traditions and employ, as Tolkien did in his legendarium, songs and verse that pass on those traditions.

In this book, the third of the series, we return to Cornwall with the Drew children and encounter more of the Cornish folklore and traditions we first saw inn Over Sea, Under Stone. Like the previous books in the series, this is an atmospheric and eerie story, steeped in magic and ancient folklore. The ‘Greenwitch’ of the title is a giant effigy made of sticks in the form of a woman, constructed by the women of Trewissick and sacrificed to the sea in a yearly ritual – not just an inanimate object, but a living being, with a mind of her own. This is ‘Wild Magic’, or the magic of nature, another element in the ongoing battle between Light and Dark. The Greenwitch holds the key to understanding the Grail, but the children will have to persuade her to give up her secrets before the agents of the Dark get there first. In this class, we will explore all the themes and ideas in the story and consider what it still has to say to us in the 21st century.