It was exactly three months after the startling termination of the Scarab murder case that Philo Vance was drawn into the subtlest and the most perplexing of all the criminal problems that came his way during the four years of John F.-X....
"Of all the criminal cases in which Philo Vance participated as an unofficial investigator, the most sinister, the most bizarre, the seemingly most incomprehensible, and certainly the most terrifying, was the one that followed the Greene...