Eleven-year-old Fiona has just read a book that doesn’t exist.

When Fiona’s family moves to be closer to her older sister’s figure skating club—and far from Fiona’s close-knit group of friends—nobody seems to notice Fiona’s unhappiness. Alone and out of place, Fiona ventures to the town’s library, a rambling mansion donated to the town by the long-dead heiress. And there she finds a gripping mystery novel about a small town, family secrets, and a tragic disappearance.

Soon Fiona begins to notice strange similarities that blur the lines between the novel and her new town. And when she looks for the book again, it’s gone. Almost like it never existed. With stubbornness and a little help from a few odd Lost Lake locals, Fiona uncovers the book’s strange history. It’s not a novel, but the true story of an unsolved century-old crime filled with clues to the mystery. Lost Lake is a town of restless spirits, and Fiona will learn that both help and danger come from unexpected places—maybe even the sister she thinks doesn’t care about her anymore.