The Saint on Guard is a collection of two mystery novellas by Leslie Charteris, first published in the United States in 1944 by The Crime Club, and in the United Kingdom in 1945 by Hodder and Stoughton. This book continues the adventures of Charteris' creation, Simon Templar, alias The Saint, and features the last of the Saint's World War II-themed adventures that had begun with The Saint in Miami. Both stories had previously been serialized in magazines in 1942 and 1943. The two novellas featured in this book were also published individually by some publishers. "The Black Market" was published as The Saint on Guard by Avon Books in the 1950, while "The Sizzling Saboteur" was published as The Saint and the Sizzling Saboteur by Avon and by Charter Books in the 1980s. Source: Wikipedia (en)