I cannot quite explain this book. In the midst of the publication of the Craig Kennedy books, Arthur Reeve suddenly produced this book, promoted as "The first in the new Detective series." As far as I can tell it was the only Guy Carrick book. And what is the difference: Craig Kennedy was a professor of chemistry who uses science to catch criminals; Guy Carrick is a former professor of chemistry who operates as a private detective to use science to fight crime. Craig Kennedy has a roommate/narrator named Walter Jameson, a self-procalime yellow journalist who works for THE STAR; Guy Carrick has a roommate narrator named Thomas Warren who publishes a paper called THE SCIENCE NEWS, who has friends (not,apparently, including Jameson.) on the Star. I don't know if Reeve was trying to distiquish. between his novels and his collections of short stories or if he was changing publishers and there was a problem over the name of Craig Kennedy. (By the way, Warren is as certainly mystified by science as Jameson is).
This book is certainly up to Reeves best standards, involving the fight against a gambling ring, which includes murder, arson and kidnapping among its weapons. Garrick fignts the ring with the same panache and technological flair that Craig Kennedy would have used. It has the usual fault of Reeves books as mysteries that it is not a play fair mystery and that the villain is exposed by technology rather than reasoning