This book is a fascinating account of the Royal Navy's submarines during the Second World War. The book provides insight into the lives of submariners and recounts some of their daring missions. It also includes information on the equipment and technology used by the submarines during the war. This item is a must-have for anyone interested in naval history and the role that submarines played in the Second World War. It is a valuable addition to any collection of books on the topic and is sure to provide hours of informative reading.