Biggles Series by W.E. Johns

At the end of WW1, Biggles and fellow pilots contend with enemies in their own Sopwith Camels. "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.'"

Sep 1916 Norfolk Flying School trains dogged delicate-looking Bigglesworth 16. He ships to France on less than 15 air hours. Though gunner Mark saves his first flight, hot dogfights force him to learn or die. Downed twice over Lines, he evades and chases Boche in air and on land, plans new tactics against Hun circuses, drops French spy.

Whilst celebrating Ginger's award of his pilot's licence, an SOS on B.B.C. radio asks for Major James Bigglesworth to contact his Uncle, Professor Richard Bigglesworth. This is of course, Dickpa, previously seen in the story 'The Cruise of the Condor'. Visiting Dickpa at his house, they find him and his friend Lord Roger Maltenham, under attack from mysterious enemies.This story takes Biggles to Tibet before the Chinese occupation.

Biggles' old enemy Von Stalhein has heard that he is on a recon mission in Norway and is determined to track him down.