London, 1918: war rages on, but the girls of London’s Foyles bookshop always have a place to feel safe.

Rosie Burrows loves being part of the Foyles team, and outwardly, she’s a happy young woman, engaged to the love of her life. But inside, Rosie faces a horrible dilemma. When Alfie enlisted, she promised to wait for him to return from France. And she has waited, quietly preparing for him to come home so they can marry. But for years her letters to him have gone unanswered, and now she doesn’t know where she stands.

To keep occupied, Rosie starts volunteering at the local school. She loves reading to the children, and takes solace in her growing friendship with the kind and gentle class teacher. But Rosie knows she can’t allow herself to develop feelings for Sam – she gave her word.

But why hasn’t Alfie answered her letters? Has he changed his mind about her? And how long should she wait for a man who may never come back?