Mettle Dives Deep – James Macnell. Second-hand book. Hardback with dustcover. English. 18 CM. 252 Pages. {Dustcover poor condition} {Water marks on most pages} 072 501 3890view more. REF: 4665. Fiction. Young Adult Fiction. James Macnell Book. Reading Book For Boys. Adventure. Children Book. This book will be removed when sold.