Agent Nine and the Jewel Mystery by Graham Dean
Agent Nine And The Jewel Mystery by Graham M. Dean. In this novel young FBI Agents Bob Houston (Agent Nine) and Tully Ross are assigned to jewel smuggling case in Florida. Agent 9 is sent to Atelissa, while Tully is sent to Nira, where they are supposed to uncover the operation. Most of the story takes place on train, the Limited, with a few stops along the way.