The final adventure in Philip Reeves brilliant Fever Crumb trilogy. The Scriven people are brilliant mad--and dead. All except one whose monstrous creation is nearly complete--a giant city on wheels. New London terrifies the rest of the world & an army of mammoth-riders gathers to fight it. Meanwhile young Fever Crumb begins a hunt for Ancient technology in the icy strongholds of the north. She finds a mysterious black pyramid full of secrets. It will change her world forever. Scriveners Moon follows Fever Crumb & A Web of Air to complete one of the most exciting & inventive fantasy adventures series ever written.