Inside the Lines
Author: first_name:  Earl Derr
last_name: Biggers
first_name: Robert Welles
last_name: Ritchie
Language: English
Year: 1915

As World War I commences, a plucky young American woman in Europe on a business trip begins to realize that she may have remained too long. She and others anxious to leave for home are caught up in events swirling about them. A mysterious British officer becomes involved. This romance-tinged spy thriller begins on a train in Calais bound for Paris and ends in Gibraltar. <br><br>
Based on a 1915 play of the same name, the novel was adapted for the screen in a 1918 silent version and again as a “