Set in the fictional village of "Ogw" in the valleys of south-east Wales. After her father Jack suffers a stroke Annie Mary Pugh is forced to take care of him but uses the circumstances to emancipate herself and find the courage to sing once again.

Gwyn can feel danger coming in the wind. Somehow he knows the warnings have to do with the broken toy horse that holds the evil spirit of a prince who lived long ago. When Gwyn discovers that the prince's dark soul has escaped from the horse and is seeking revenge Gwyn, Emlyn, and Nia have to figure out how to save the mysterious soldier who claims to be Nia's distant cousin. With the help of the Snow Spider, can they recapture the prince's soul without hurting the Chestnut soldier?

Young magician Gywn and his friend Nia have been warned to stay away from Emlyn Llewelyn, the strange boy who claims his mother lives on the moon. And yet, a mysterious magic continues to draw them to him. But why? It's up to Gwyn and Nia to solve the mystery, with the help of Arianwen, the Snow Spider.

The story covers eighty years in the lives of a pair of Welsh identical twins with an unusual bond, as they go through war, love affairs, and land disputes.

When a teacher takes a group of troubled school children on a school trip to Conwy in Wales, the children understand life outside of Liverpool.