An eagle in the night A story based on true events, though is presented as a novel, was experienced by one of our air heroes during the Great War 15-18: the naval lieutenant Eugenio Casagrande, a seaplane pilot who at night, under the moonlight, transferred our agents to the subdued territories in both sides of Piave, landing on the water of any pond in the mountains of Trentino. An achievement becoming even more important at times that the instrumentation was limited to: compass, cronometer, altimeter, turn bank and little else. The great thing is that he has always got away and, at the end of the war, not knowing what else medals confer to him, he was appointed Earl of Villaviera! The story is set in a real historical context involving a crowded theater of events, scenes and characters: the Italian and Austrian Secret Services, the high commands of the Italian army, the world of Air Force of the time, the irredentists from Trentino, the first reception and transmission centers of radio telegraph, as well as the places where the events of the story narration, took place: Venezia, Villaviera, Trento, Rovereto, Levico Terme, the highland of Sette Comuni, the outposts where our forces faced the enemy. The photographic appendix "The faces, places and the facilities of the story," provide the reader with the help to identify itself in the story, while comes closer to the actual reality in a more effective way.