Summer 1924. On the eve of a glittering Society party, by the lake of a grand English country house, a young poet takes his life. The only witnesses, sisters Hannah and Emmeline Hartford, will never speak to each other again. Winter 1999. Grace Bradley, 98, one-time housemaid of Riverton Manor, is visited by a young director making a film about the poet’s suicide. Ghosts awaken and memories, long consigned to the dark reaches of Grace’s mind, begin to sneak back through the cracks. A shocking secret threatens to emerge – something history has forgotten but Grace never could.

Living on her family’s idyllic lakeside estate in Cornwall, England, Alice Edevane is a bright, inquisitive and precociously talented 16-year-old who loves to write stories. One midsummer’s eve, after a beautiful party drawing hundreds of guests to the estate has ended, the Edevanes discover that their youngest child, 11-month-old Theo, has vanished without a trace. He is never found, and the family is torn apart and the house abandoned.

1961. On a sweltering summer’s day, while her family picnics by the stream on their Suffolk farm, 16-year-old Laurel hides out in her childhood tree house, dreaming of the bright future she can’t wait to seize. But before the idyllic afternoon is over, Laurel will have witnessed a shocking crime that changes everything. 2011. Now a much-loved actress, Laurel finds herself overwhelmed by shades of the past. Haunted by memories and the mystery of what she saw that day, she returns to her family home and begins to piece together a tale of three strangers from vastly different worlds.

As a 13-year-old World War Two evacuee, Edie’s mother was chosen by the mysterious Juniper Blythe and taken to live at Milderhurst Castle with the Blythe family. In the grand and glorious Milderhurst Castle, a new world opened up for Edie’s mother. She discovered the joys of books and fantasy and writing, but also, ultimately, their dangers. Fifty years later, as Edie chases the answers to her mother’s riddle, she too is drawn to Milderhurst Castle and the eccentric Blythe sisters. Inside the decaying castle, Edie begins to unravel her mother’s past.

Living on her family’s gorgeous lakeside estate in Cornwall, England, Alice Edevane is a bright, clever, inquisitive, innocent, and precociously talented fourteen-year-old who loves to write stories. But the mysteries she pens are no match for the one her family is about to endure ...One midsummer’s eve, after a beautiful party drawing hundreds of guests to the estate has ended, the Edevanes discover that their youngest son, Theo, has vanished without a trace.