The Allies by Jack Cavanaugh
Approx. 127,180 words.
Published on September 25, 2010.
Book 6, American Family Portrait series. World War I comes suddenly to the Morgans when Katy and her mother survive the sinking of the luxury liner Lusitania, torpedoed by a German U-boat. Her brother Johnny distinguishes himself as an aviator, attached to a elite French squadron. In a series of ill-fated events, both find themselves behind enemy lines.