Robert W. Chambers 
Who Goes There! (Annotated) [EPUB ebook] 

• This edition includes the following editor’s introduction: Robert William Chambers, a successful, influential and chameleonic writer

First published in 1915, “Who Goes There!” is an essential World War I espionage thriller by American writer Robert W. Chambers.
The story presented in 'Who Goes There!’ is perfectly captured in the first sentences of the preface: “
The Crown Prince is partly right; the majority in the world is against him and what he stands for; but not against Germany and the Germans.
He professes surprise at the attitude of the United States. That attitude is the natural result of various causes…”