The Spanish War
Written by
Leslie Charteris
Copyright 1937
First published as The Return of the Saint in The Thriller (Feb. 13, 1937) then as The Saint's Progress in Popular Detective (Sep. 1937). Only published with the current title in the collections , , and .
The debt was only £1 but it led to an adventure worth $30,000 in bearer bonds as well as at least one dead.