High on a Cornish cliff sits a vast uninhabited mansion. Uninhabited except for Blake, a young woman of dubious background, secretive and alone, currently acting as housesitter. The house has a panic room. Cunningly concealed, steel lined, impregnable - and apparently closed from within. Even Blake doesn’t know it’s there. She’s too busy being on the run from life, from a story she thinks she’s escaped. But her remote existence is going to be invaded when people come looking for the house’s owner, missing rogue pharma entrepreneur Jack Harkness. 

Eldritch Swan is a dead man. Or at least that is what his nephew Stephen has always been told. Until one day Eldritch walks back into his life after 36 years in an Irish prison. He won't reveal any of the details of his incarceration, insisting only that he is innocent of any crime....

1919. The eyes of the world are on Paris, where statesmen, diplomats and politicians have gathered to discuss the fate of half the world’s nations in the aftermath of the cataclysm that was the Great War. A horde of journalists, spies and opportunists have also gathered in the city, and the last thing the British diplomatic community needs at such a time is the mysterious death of a senior member of their delegation. 

The car jolts to a halt at the pavement's edge, the driver waving through the windscreen to attract Richard's attention. He starts with astonishment. The driver is Gemma, his ex-wife. He has not seen or spoken to her for several years. They have, she memorably assured him the last time they met, nothing to say to each other. But something has changed her mind - something urgent.

Spring, 1919. James ‘Max’ Maxted, former Great War flying ace, returns to the trail of murder, treachery and half-buried secrets. Having left Paris after avenging the murder of his father, Sir Henry Maxted, he is convinced there is more - much more - to be discovered about what Sir Henry had been trying to accomplish. And he suspected elusive German spymaster Fritz Lemmer knows the truth of it. Now, undercover in Lemmer’s service but with his loyalty pledged to the British Secret Service, Max sets out on his first - and possibly last - mission for Lemmer.