At The Sign Of The Sphinx (1906)

The novel features Pennington Wise, a private detective tasked with investigating the theft of the rare "Book of Thoth" from a New York bookstore. As Wise navigates a complex web of intrigue involving secret societies and a sinister cult, he encounters various intriguing characters, including Zizi, who has her own motives for finding the book. The story is rich with suspense and unexpected twists, making it a captivating mystery that explores themes of adventure and danger in the pursuit of ancient artifacts.