McCutchan, Philip Lieutenant Cameron, R.N.V.R.

This fast paced, quick read is set in the South Atlantic in 1941 and has more than its share of improbable coincidences as British naval reserve officer Lieut. Donald Cameron - a former merchant marine captain - takes on the German regular navy as well as Nazi armed merchant raiders. The tale is somewhat marred by author McCutchan's stock German villains, including a dastardly Gestapo officer.