Two Great Knights of Adventure was written by Jacques Mortane in 1936. Mortane was on friendly terms with both Marc Pourpe and Raoul Lufbery and wrote the book as a tribute to the two pilots, both of whom were killed in the First World War. Due to the access that Mortane had to these early aviators, this was the best work on their lives, but it was never translated into English and is long out of print. American author and Lafayette Escadrille expert...