Graham M. Dean 's Books
A very well recieved series by Graham M. Dean are the books, featuring tropes. The most popular books are Agent Nine and the Jewel Mystery: A Story of Thrilling Exploits of the G Men, Agent Nine Solves His First Case: A Story of the Daring Exploits of the G Men, The Treasure Hunt of the S-18, which was published in 2022.
Agent Nine and the Jewel Mystery: A Story of Thrilling Exploits of the G Men
Agent Nine Solves His First Case: A Story of the Daring Exploits of the G Men
The Treasure Hunt of the S-18