Caroline Grant is struggling to accept the end of her marriage when she receives an unexpected bequest. Her beloved great-aunt Lettie leaves her a sketchbook, three keys, and a final whisper...Venice. Caroline’s quest: to scatter Juliet “Lettie” Browning’s ashes in the city she loved and to unlock the mysteries stored away for more than 60 years.

In 1944, British bomber pilot Hugo Langley parachuted from his stricken plane into the verdant fields of German-occupied Tuscany. Badly wounded, he found refuge in a ruined monastery and in the arms of Sofia Bartoli. But the love that kindled between them was shaken by an irreversible betrayal. Nearly 30 years later, Hugo's estranged daughter, Joanna, has returned home to the English countryside to arrange her father's funeral. Among his personal effects is an unopened letter addressed to Sofia. In it is a startling revelation.

Ava thought her job as a librarian at the Library of Congress would mean a quiet, routine existence. But an unexpected offer from the US military has brought her to Lisbon with a new mission: posing as a librarian while working undercover as a spy gathering intelligence. Meanwhile, in occupied France, Elaine has begun an apprenticeship at a printing press run by members of the Resistance. It’s a job usually reserved for men, but in the war, those rules have been forgotten. Yet she knows that the Nazis are searching for the press and its printer in order to silence them.

At the end of her first unsuccessful season out in society, Lady Georgiana has all but given up on attracting a suitable man - until she receives an invitation to a masked Halloween ball at Broxley Manor. Georgie is uncertain why she was invited, until she learns that the royal family intends to marry her off to a foreign prince, one reputed to be mad.

As the war begins, Hanna Rombauer, a young German woman, is sent to live with her aunt and uncle after her mother’s death. Thrown into a life of luxury she never expected, Hanna soon finds herself unwillingly matched with an SS officer twenty years her senior. The independence that her mother lovingly fostered in her is considered highly inappropriate as the future wife of an up-and-coming officer and she is sent to a “bride school.” There, in a posh villa on the outskirts of town, Hanna is taught how to be a “proper” German wife.