Biggles Sky High Spy
Written by
W. E. Johns
Copyright 1934
7th of 12 stories in . It was first published as Biggles Sky High Spy in The Modern Boy #357, December 8, 1934.
"Biggles suspects that a visiting Canadian pilot is really a German spy. A trap is set, but all is not as it seems and it is left to Algy to save Biggles from making a tragic mistake."