Molly and Andrew are just trying to get home to Ireland for the holidays when a freak snowstorm grounds their flight. As the snow falls over the city and over the heads of two friends who are sure they’re not meant to be together, the universe might just have a plan of its own.

When Emily Mattison falls victim to a near-fatal accident shortly after receiving an unexpected inheritance from a distant cousin, her ruthless nephew George seizes the opportunity to take control of his aunt's assets. It's only when Emily reaches The Drover's Hope, the former pub on the edge of the Lancashire moors bequeathed to her by her late cousin Penelope, that she begins to feel safe. She also discovers that love can be found in the most unexpected places. But it's not so easy to escape the clutches of someone as determined as George.

Cassandra Blake has raised her three motherless sisters. The girls are the pride of their book-loving, impractical father, and not in a hurry to marry. Then the American Civil War cuts off supplies of cotton to Lancashire, the mills fall silent and there is no work. There is a stark choice: stay and risk starvation or pack up and begin again elsewhere. Cassandra has fallen in love with Reece Gregory, but he can't support a wife. When he's given the chance to start a new life in Western Australia, he seizes the opportunity, promising to send for her.

The friendship starts with a letter...from aspiring writer Sarah to blunt but witty journalist Helen, complaining about Helen's most recent book review. And there begins a correspondence that blossoms into a friendship which spans over two decades. As the years pass, the women exchange details of loves lost and found, of family joys and upheavals. Sarah's letters filled with thoughts on her outwardly perfect marriage and her aching desire for children, and Helen's on the struggle of raising her young daughter alone.

In 1820, Salem Street is sparkling and new: eight small terraced houses built by a Lancashire mill owner for his best workers. Annie Gibson's family is one of the first to move in - a step up in the world for them. But when her mother dies, Annie's happy childhood ends and she is left to bring up her brother and sister. Red-haired, intelligent and startlingly pretty, Annie soon finds herself banished from home by a jealous stepmother. She finds work in the local doctor's household, where she learns about the fascinating world outside Salem Street.