A collection of wartime letters from an American aviator written between July and December 1917, documenting the author's decision to go to Europe, training and service with Allied aviation units, daily life at the front, aerial patrols and dogfights, the bonds among fellow flyers, and personal reflections on duty and sacrifice. The book also contains an introductory article, a biographical note by the author's father, illustrative photographs, and documents detailing his final combat and fate.