The major new novel from New York Times bestselling suspense writer Jennifer McMahon. Eva grew up watching her father, Miles, invent strange and wonderful things in the small workshop behind their house on the river that runs through their old mill town. But the most important invention of all was the one that Miles claimed came from the mind of Thomas Edison himself—a machine that allowed one to speak with loved ones long passed. Smuggled out of Edison's laboratory, the blueprints were passed down to Miles, and he's been using them to protect Eva, her mother, Lily, and her brother, Errol, ever since. Then, one night when a storm is raging and the river is threatening to flood, the machine whirrs to life on its own. Danger, it says. You're in terrible danger. The next thing Eva knows is waking up on the side of the river and seeing her mother's grim face. Eva's father and brother are dead, their house has been washed away and an evil man is searching for them both. They need to hide. Eva changes her name to Necco—a candy she always loved—and tries to put everything in her past behind her as she adapts to her new life off the grid. But when her boyfriend is murdered and her mother disappears, she knows that the past is starting to catch up to her. What really happened the night of the flood? As Necco searches for the truth, her journey unites her with two women who are on desperate quests of their own. And as the trio follows the clues to solving the mystery of Necco's past, they discover that sometimes it's the smallest towns that hold the strangest secrets.