A few weeks ago I saw this book mentioned in this post by Kaptain Kobold.
Thanks to the local library service I was able to quickly get a copy and true to the quote on the cover of the 2nd Edition I found it "hard to put down ... accessible, and unfailingly interesting." As the Kaptain says it is an excellent account of the Australian Flying Corps contribution in WW1.
It will give me new inspiration for my Wings of Glory game tonight and for games to come (even though I have trouble matching performance of the Wings of Glory system to air combat as described in the book).
You can find out more about Fire in the Sky at Google books here.