«Nick Carter – The Great Spy System» by John R.Coryell

Nick Carter — The Great Spy System or, Nick Carter's Promise to the President is a detective story featuring the famous detective Nick Carter first published in 1907, written by John R. Coryell.

This is the story of how Nick Carter, Master Detective, broke a foreign spy ring in Washington, DC in one night to keep his promise to the President.

Nick Carter is a fictional character who began as a pulp fiction private detective in 1886 and has appeared in a variety of formats over more than a century. The Nick Carter name was treated as a pseudonym, and many of the volumes were written in first person. Nick Carter would go on to become one of the most popular heroes of the 19th and 20th centuries.