As it happens, that question may now be answered. For a few years Doug and Kate lived quiet lives in Scotland; he running the Loch Ness Monster concession bringing customer to the local merchants, who pay him; and she, working to understand the world she'd been dropped into, studying languages, culture and martial arts.
Until Dougray is called by His Majesty's Secret Service to investigate a threat to Tesla's power-transmitting tower in northern Ireland. Unbeknownst to him, Kate follows him.
From there a journey of revenge and enlightenment starts, rolling across Europe in the Orient Express. Along the way we spend time with Mata Hari, Winston Churchill, P. W. Wodehouse, Arsene Lupin, Nicola Tesla, Kemal Ataturk, Aleister Crowley and George Gurdjieff.
We spend time in boats, trains, airships, lifeboats, and Topkapi Palace.
Not as graphic as Reluctant Chrononaut, but still sexy, and lots and lots of Kate!