The Camel closed up until it was flying beside him; the pilot smiling. Biggles showed his teeth in what he imagined to be an answering smile. 'You swine,' he breathed: 'you dirty, unutterable, murdering swine! I'm going to kill you if it's the last thing I do on earth.' This story is set in the last years of the First World War. Air combat has now become the order of the day and air duelling is a fine art. Biggles and his fellow pilots now have to contend with the enemy using their own British aircraft, a Sop with Camel, to lure the British pilots to their deaths...