Owen Stannard gets a hefty jail sentence for receiving stolen property. In a British prison, he makes contact with a gang known as 'The Scarperers', who specialise in successful escapes - if the price is right. Along with a notorious double agent named Slade, Stannard goes over the wall. In actual fact, Stannard is working for the British Secret Service, answerable only to a man called 'Mackintosh'. Someone wants the information in Slade's head badly. Stannard must find out whom, even if it means risking his own neck...
Filmed by John Huston in 1971 as 'The Mackintosh Man' starring Paul Newman and James Mason, this is a tough, gritty spy story in the best tradition of Buchan's 'The 39 Steps', only set in Ireland instead of Scotland. Loosely based on the real-life George Blake affair, Bagley never lets up the excitement, subjecting the reader to an endless barrage of twists and turns. The climax of the book is completely different to the one in the movie, being a lot more spectacular visually. Though Bagley in his lifetime never really emerged out of Alistair Maclean's shadow, his books are in my view far superior.