Britain's most audacious spy, Betsy Breedlove, has been given her next assignment. She must travel to the Hotel Majestic in Paris and seduce the world-renowned psychiatrist Professor Edgar Foxton and then confiscate his notebook.
Inside the notebook lie confessions and secrets that would break governments and lead to another Great War.
Breedlove is accompanied to Paris by her long-suffering brother and the Chancellor of the Exchequer, Horace Dawley. After being shot at in Prague by Breedlove's arch nemesis Count Vlodlav, Horace is adamant that this is the last assignment he's accompanying his sister on.
The race to prevent another world catastrophe is on!