* Dark Duet * Two British counter-intelligence officers track a network of German agents which they learn is based out of Dublin. * The Stars Are Dark * Quayle receives information from Morocco about the German forces operating in North Africa and puts his agents into action. * The Dark Street * The sinister business of counter-espionage is played out by an array of magnificent characters. Quayle, compounded of wisdom, administrative genius and the ability to live without sleep, wine or women; Shaun O'Mara, who loves all those things, looks like an actor and is an aristocrat, and works with subtlety, artistry and distinction; and Ricky Kerr, a cleverly drawn portrait of a man who is not quite able to stand the pace. * Sinister Errand * Kells is on the trail of a group of Nazi spies operating in Britain to try and pinpoint the landing spots of V1 rockets to improve their accuracy. On his way he encounters several alluring but treacherous women. * Dark Hero * A Chicago gangster involved in the gang wars of the 1930s finds himself in Nazi-occupied Norway during the Second World War and becomes a hero of the anti-Nazi resistance by applying essentially the same skills which had made him a successful and feared gangster. * Dark Interlude * O'Mara is sent to Paris to uncover information that will help track down the lone remaining member of the Nazi German espionage network still at large. While there he becomes entangled with fellow spy Tanga de Sarieux. * Dark Wanton * In London's West End, two lists of Nazi agents and collaborators, wanted by the Allies for their war crimes, go missing. Intelligence chief Peter Everard Quayle chooses to use agents accustomed to operating behind enemy lines to recover them. * You Can Call It a Day * The first part of a trilogy featuring the private detective Johnny Vallon, a hard-drinking former army officer. * Dark Bahama * Johnny Vallon, head of Chennault Investigations, sends out one of his men to the West Indies to bring back a headstrong daughter of a wealthy family. However, things soon to be much more complex and treacherous as they first appear. * Lady, Behave! * Johnny Vallon, a private detective running his own business, is charged with investigating a Mr. Vine Allard, the owner of a rival detective agency. * Ladies Won't Wait * In France while waiting for his next mission, Kells encounters an attractive fellow agent who, not long after using the code phrase "ladies won't wait" is found dead. This puts him on the trail of an East German scientist attempting to defect to the West and a ruthless Soviet female agent determined to stop him at all costs.
