Times columnist and associate editor Ben Macintyre will talk about his latest work, Double Cross: The True Story of the D-Day Spies, just days after its publication. Macintyre uses new material to piece together the story of the spies who hoodwinked Hitler and ensured the invasion of Europe was a success. The story includes the previously unknown efforts of one spy who saved the landings from catastrophe. The D-Day spies convinced the Germans that the landings would take place in Calais and Norway. They were only five in number and included a bisexual Peruvian playgirl, a Polish fighter pilot, a Serbian seducer, a Spaniard with a diploma in chicken farming and a hysterical Frenchwoman.

Macintyre is author of eight previous books including Agent Zigzag, the story of the wartime double-agent Eddie Chapman, and the number-one bestseller Operation Mincemeat.