Young magician Gwyn 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.
This is the second magical story in the "Magician Trilogy" from acclaimed author Jenny Nimmo.
