1940: In south-west Ireland, the young and beautiful Lady Charlotte Rathmore is pronounced dead after she disappears by the lake of Blackwater Hall. In London, on the brink of the Blitz, Nancy Rathmore is grieving Charlotte's death when a letter arrives containing a secret that she is sworn to keep. 2019: Ellie Fitzgerald is forced to leave Dublin disgraced and heartbroken. Abandoning journalism, she returns to rural Kerry to weather out the storm. But, when she discovers a faded letter, tucked inside the pages of an old book, she finds herself drawn in by a long-buried secret.

After fleeing an abusive husband with her six-year-old son, Tommie, Beverly is attempting to create a new life for them in a small town off the beaten track. Despite their newfound freedom, Beverly is constantly on guard: she creates a fake backstory, wears a disguise around town, and buries herself in DIY projects to stave off anxiety. But her stress only rises when Tommie insists he’d been hearing someone walking on the roof and calling his name late at night.

Dublin, 1952. When Mary Kate Ryan receives a surprise inheritance from the woman who abandoned her as a tiny baby, she’s stunned. All her life, she has longed to know why her mother disappeared, and now she’s devastated to realize that every lonely night she spent without a home or family of her own, her mother knew exactly where she was.

Edinburgh, 1911: When Maud McIntyre and her lady’s maid, Daisy, form a detective agency, they never dream their first case will take place at a glamorous house in the Scottish Highlands. But when the duchess of Duddingston, concerned that a notorious jewelry thief will target her lavish weekend party, employs Maud to go undercover as a guest to find the culprit, the agency has its first case to solve....

Adelaide Hills, Christmas Eve, 1959. At the end of a scorching hot day, a local deliveryman makes a terrible discovery. A police investigation is called, and the small town of Tambilla becomes embroiled in one of the most shocking and perplexing murder cases in the history of South Australia. Many years later and thousands of miles away, Jess is a journalist in search of a story. Having lived and worked in London for nearly two decades, she now finds herself laid off from her full-time job and struggling to make ends meet. Until a phone call out of nowhere summons her back to Sydney.

1933. Hannah Snow is fleeing her unhappy marriage to an MP when she finds herself in a small hotel on the banks of Loch Ness. But when a monster is spotted in the depths of the waters, the press descends – and Hannah finds her hiding place is discovered. Someone has been looking for Hannah, and when they find her events will take a devastating turn. Present day. True crime podcaster Scarlett finds herself intrigued by the mystery of Hannah Snow, wife of a promising government minister who disappeared in 1933 – just months before her husband also went missing, presumed dead.

In the far west of Cornwall lies the White Valley, which cuts deeply through bluebell woods down to the sea at White Cove. The valley has a long and bloody history, laced with folklore, and in it sits a house above the beach that has lain neglected since the war. It comes with a reputation and a strange atmosphere, which is why mother and daughter Magdalena and Mila manage to acquire it so cheaply in the fateful summer of 1954.

Thirty-eight year old Cassandra is lost, alone, and grieving. Her much loved grandmother, Nell, has just died and Cassandra, her life already shaken by a tragic accident 10 years ago, feels like she has lost everything known and dear to her.

As I sit in her dimly lit bedroom, surrounded by flickering candles, I feel the crushing weight of my daughter’s absence. It's been two years since Layla was murdered. The police have searched tirelessly for her killer, but they've found nothing – it's like whoever did it vanished into thin air. My once-perfect marriage is falling apart, we can hardly look at each other anymore. Our ten-year-old son Gale is struggling. He’s changed since she died. He’s more secretive and also…

1813. Lizzie's beloved older sister Esme is sold in marriage to the ageing Lord Blountford to settle their father's debts. One year later, Esme is dead, and Lizzie is sent to take her place as Lord Blountford's next wife. Arriving at Ambletye Manor, Lizzie uncovers a twisted web of secrets, not least that she is to be the fifth mistress of this house. Marisa. Anne. Pansy. Esme. What happened to the four wives who came before her? In possession of a unique gift, only Lizzie can hear their stories, and try to find a way to save herself from sharing the same fate.

Violet Figg and her sister Trudy have lived a quiet life in Sugar Bend ever since a night forty years ago stole Trudy’s voice and cemented Violet’s role as Trudy’s fierce and loyal protector. Now, Trudy spends her days making sculptures from found objects and speaking via notes written on scraps of paper, while Violet runs their art shop, monitors the bird activity up and down the water, and tries not to think of her one great love she gave up in order to keep her sister safe.

Skye Logan has been struggling to run her remote farm on Scotland's west coast alone ever since her marriage fell apart. When a handsome stranger turns up looking for work, it seems that her wish for help has been granted. Rafe Carlisle is searching for peace and somewhere he can forget about the last few years. But echoes of the distant past won't leave Skye and Rafe alone, and they begin to experience vivid dreams which appear to be linked to the Viking jewellery they each wear.

At 36, Hope McKenna-Smith is no stranger to bad news. She lost her mother to cancer, her husband left her for a 22-year-old, and her bank account is nearly depleted. Now, Hope’s beloved French-born grandmother Mamie, who wowed the Cape with her fabulous pastries for more than 50 years, is drifting away into a haze of Alzheimer’s. But in a rare moment of clarity, Mamie realizes that unless she tells Hope about the past, the secrets she has held on to for so many years will soon be lost forever. Arming her with a scrawled list of names, she sends Hope to France.

Loveday Cardew's beloved Lost for Words bookshop, along with the rest of York, has fallen quiet. At the very time when people most need books to widen their horizons, or escape from their fears, or enhance their lives, the doors are closed. Then the first letter comes. Rosemary and George have been married for fifty years. Now their time is running out. They have decided to set out on their last journey together, without ever leaving the bench at the bottom of their garden in Whitby. All they need is someone who shares their love of books.

In 1918, after four harrowing years on the Western Front, Tom Sherbourne returns to Australia to take a job as the lighthouse keeper on remote Janus Rock. To this isolated island, where the supply boat comes only four times a year and shore leaves are granted every other year at best, Tom brings a young, bold, and loving wife, Isabel. Three years later, after two miscarriages and one stillbirth, the grieving Isabel is tending the grave of her newly lost infant when she hears a baby’s cries on the wind. A boat has washed up on shore carrying a dead man and a living baby.