Masselman, George "Sea-Dog's Revenge"

An English merchant marine captain, reduced to commanding a “rusty little tanker which careened across the Caribbean like a kerosene peddler through New England” because of alleged incompetence and cowardice in World War 1 (he had lost his first command to a German submarine’s toepedo ), leaps into action to prove his true patriotism when a German agent attempts to recruit his services in the early days of the Second World War. He fools the Germans into thinking that he can be bought and arranges for a mid-ocean rendezvous to fuel an enemy U-boat. Once the Nazi vessel surfaces, he extends oil lines to the sub — and then exacts his revenge through an ingenious plot hatched up in secret from the remainder of his tanker crew. Like all Liberty fiction, this one tells the reader exactly how long it will take to read through it — in this case, 29 minutes and 20 seconds!