Biggles - Air Commodore
Written by
W. E. Johns
Copyright 1937
A single adventure serialized as Biggles Fights Alone over 10 issues of The Modern Boy, #452 - #461, October 3, 1936 to December 5, 1936.
At first the disappearance of British supply ships in the Indian Ocean were marked down as just accidents at sea but Biggles is concerned something more nefarious is at play. He is asked by the British government to investigate.