“By writing this series the author is doing national service, for he writes of the Navy and the sea with knowledge and sound sense. . . . What a welcome addition the whole series would make to a boy’s library.”—_Daily Graphic._ “The right romantic stuff, full of fighting and hairbreadth escapes. . . . Commander Currey has the secret of making the men and ships seem actual.”—_Times._ “By this time Ian Hardy has become a real friend and we consider him all a hero should be.” _Outlook._ SEELEY, SERVICE & CO. LIMITED TRANSCRIBER NOTES Misspelled words and printer errors have been corrected. Where multiple spellings occur, majority use has been employed. Punctuation has been maintained except where obvious printer errors occur. Book title and author's name has been added to the original cover.