September Weekes is accustomed to facing teasing and bullying because of her white hair, tubby figure and silly name, but the discovery of a clear, smooth stone at her home casts her into a struggle between good and evil that will present her with sterner challenges. The stone takes her to Gwlad, the Land, where the people hail her as the Cludydd o Maengolauseren, the bearer of the starstone, with the power to defend them against the evil known as the Malevolence. September meets the leader of the people, the Mordeyrn Aurddolen, and the bearers of the seven metals linked to the seven...

September Weekes found a smooth stone which took her to Gwlad, the Land, where the people hailed her as the Cludydd o Maengolauseren, the bearer of the starstone, with the power to defend them against the evil known as the Malevolence. Now, having reached Arsyllfa she is re-united with the Mordeyrn Aurddolen with whom, together with the other senior metal bearers that make up the Council of Gwlad, she must plan the defence of the Land. But now it seems that September must defeat Malice, the guiding force behind the Malevolence, if she is to save the Land and all its people. Will she be...

London, 1680. The famous philosopher, Sir Robert Boyle, is about to demonstrate the results of his investigations of the phosphorus and its cold fire to fellows of the Royal Society and other guests. Far away at the edge of Wales an alchemist learns of the discovery and, helped by his young assistant, attempts in his own way to form the mysterious material, little suspecting that his work threatens to open the universe to the evil power of the Malevolence. Summoned by the Brains, September, the Cludydd o Maengolauseren, arrives charged with halting the Malevolence's storm of destruction....