The Ambassador's Son Affair

Published in issued #24-25 of Men Of War with 12 color pages. Also reprinted in Showcase Presents: Men Of War in 2014.
The year is 1867. The location is Mexico. Rosa has been hired by Archduke Maximillian to see that his young nephew, Rudolph, makes it out of that country alive after the populace staged a revolt against French rule. The story also includes a brief history of Rosa.