1920s England. Sarah Piper’s lonely, threadbare existence changes when her temporary agency sends her to assist an obsessed ghost hunter. Alistair Gellis—rich, handsome, and scarred by World War I—has been summoned to investigate the spirit of the nineteen-year-old maid Maddy Clare, who is said to haunt the barn where she committed suicide.

Anna and Peter desperately need to escape London for a fresh start. And they’ve found just the place: a perfect house on a perfect street in a perfect new development on the Scottish coast. But before they’ve even unpacked, they discover that the community they’ve moved into might be keeping secrets of its own… 

Theirs is a world of opposites. The privileged live in sky manors held aloft by a secretive magic known only as the Mysteries. Below, the earthbound poor are forced into factory work to maintain the engine of commerce. Only the wealthy can afford to learn the Mysteries, and they use their knowledge to further lock their hold on society. Cettie Pratt is a waif doomed to the world below, until an admiral attempts to adopt her. But in her new home in the clouds, not everyone treats her as one of the family.

Savannah was four years old when her twin sister, Georgia, went missing from their small Louisiana town, fracturing their family. Twenty-eight years later, Savannah convinces her estranged older sisters, Rayanne and Sue Ellen, to honor the pact they made as children and retrieve the time capsule they buried in their old backyard. But coming home means confronting old ghosts…and their stubborn grandmother, Meemaw.

The summer in question started out with hot, fun-filled days and new friendships. We had just turned thirteen and had our whole lives ahead of us. But that was before her. Before we became known as the Hixton Five and our lives become defined by one night. It’s hard to believe twenty years have passed since she was locked away. But now she’s free and strange things have started to happen. When I close my eyes, the creeping anxiety and fear is overwhelming and all too real. Because the monster is back, and I know she has a score to settle with us.