The Two-Headed Eagle: In Which Otto Prohaska Takes a Break as the Habsburg Empire’s Leading U-boat Ace and Does Something Even More Thanklessly Dangerous by John Biggins – the third in a fantastically well-written set of novels about an Austrian sailor and airman during WW1.
This particular novel is about his adventures as an officer-observer in the KuK Fliegertruppe over the Italian-Austrian front. Wonderful stuff, like the two previous books in the series that I have read.