'In the very highest rank of books about the last war. Submarines are thrilling beasts, and Edward Young tells of four years' adventures in them in a good stout book with excitement on every page. He writes beautifully, economically and with humour, and in the actions he commands he manages to put the reader at the voice-pipe and the periscope so that sometimes the tension is so great that one has to put the book down'. The Sunday Times.