Flying Boats & Spies by Jamie Dodson. See Nick Grant as he joins the crew of the SS North Haven to build the Skyway to Asia for Pan American Airways flying boats. Nick battles raging seas and Japanese spies as he journeys across the world's largest ocean.

Nick Grant is on a secret mission to Shanghai for US Naval Intelligence to recover secret US Naval radio codes stolen by Japanese arch spy Miyazaki. Nick and his old boss, Bill Grooch, fly a Sikorsky S-43 flying boat to Shanghai to intercept Miyazaki.

Book Four brings Howard Hughes on the scene to lure Nick Grant into another adventure in the pre-WWII period. The Japanese Intelligence services remain active in California and have a new partner, the Third Reich. It's up to Nick to turn the tables and retrieve the stolen American secrets.