Ursula Bridgewater has turned to travel to escape the heartbreak she felt after being unceremoniously dumped by her fiance. She might be prepared for the land of freedom and opportunity, but is she ready to accept balloonist Toby O'Hara's offer to see the Niagara from a great height?"

Stephanie Sandford, recently widowed, must tell her family the truth but the past is indistinct and it's complicated. First, there was her mum, who developed an anxious streak after marrying the wrong Reg. Then there was the young man from the dairy who taught Stevie to swim and broke her heart.

Cambridge University in 1937 is awash with ideas and idealists - to unworldly Joan it is dazzling. After a chance meeting with Russian-born Sonya and Leo, Joan is swept up in the glamour and energy of the duo, and finds herself growing closer and closer to them both. But allegiance is a slippery thing. Out of university and working in a government ministry with access to top-secret information, Joan finds her loyalty tested as she is faced with the most difficult question of all: what price would you pay to remain true to yourself?