Biggles Defies the Swastika — W.E. Johns

SECRET AGENT! Sworn into the German Air Force as a Gestapo Agent, Biggles is deep undercover on a reconnaissance mission in Norway when the Germans invade without warning. If he can just get back to his plane he can leave Norway quickly and safely, but his old enemy Von Stalhein has heard that Biggles is in Norway, and he's determined to track him down... Join cult hero and flying ace, Squadron Leader James Bigglesworth on another action packed adventure!