Book 5, "Ticking: The Great Experiment"
The fifth mission was supposed to be a relatively passive, uneventful one. So uneventful Bea thought she might go alone. She wanted to fulfil a fantasy; to travel to 1927 to visit her heroes, Albert Einstein and Cecilia Payne. She invited her chrononauts, Skypilot and Zachary, along to enjoy 'The Roaring Twenties'.
The time travellers get more than they bargained for, much more! Sky becomes a mob associate, working at the Cotton Club in Harlem, New York, before being rescued by one called 'Lipstick'. Zachary finds himself working on the schooner of the most famous of rumrunners, Bill 'the Real' McCoy. He travels to The Bahamas, where he meets two of history's most famous -- and seductively dangerous -- female rumrunners, Gertrude 'Cleo' Lythgoe and 'Spanish Marie' Waite. Beatrice befriends a flapper. The two joy-ride like Thelma and Louise until they are attacked while picnicking. Shots fired!