When Lillia Pameroy arrives at Kentucky Lake to stay on a borrowed houseboat with Grauntie Nora, strange happenings begin almost at once. A lady in white reaches out from the past, drawing Lillia into a haunting mystery of a forgotten family, an overgrown graveyard, and secrets buried deep in the Land Between the Lakes. With the help of her new friend Zoe, Lillia must follow the clues, trust her imaginings, and uncover a heartbreaking truth that has waited far too long to be told.

When Lillia Pameroy travels to the swamps of Alabama, she discovers a weathered mansion, playful spirits, and a terrifying legend of a Pirate Queen guarding buried treasure. But when her brother disappears, Lillia must face the darkness in the swamp and uncover secrets that were never meant to be found.

A missing friend. Haunted hills. And footprints that appear where no one has walked. When Lillia Pameroy arrives in Deadwood, South Dakota, she is shocked to discover her friend Tod has disappeared somewhere in the Black Hills. As search parties head into the wilderness, Lillia begins to see ghostly clues others cannot, including mysterious footprints leading into the snow-covered mountains. Are they guiding her to Tod…or into danger?

When Lillia Pameroy arrives in central Wisconsin, a quiet mansion and a lonely old man hide secrets long locked away. Drawn in by a ghostly girl’s plea for help, Lillia must uncover a story of love and loss that spans generations. But some doors, once opened, may reveal more than she’s ready to face.

When Lillia Pameroy visits the Biltmore Estate, in North Carolina, she uncovers the mystery of a young girl who vanished during a blinding snowstorm over one hundred years ago. As the past begins to stir, Lillia must follow a trail of clues through a web of secrets and deception to uncover what really happened.

Ghostly Tours sends twelve-year-old Lillia Pameroy to haunted San Antonio, where ghost tours are being sabotaged and the spirits at the Alamo seem desperate to be heard. Invited to help an elderly night guard, Lillia must use her imagining abilities and detective instincts to uncover the truth behind the city’s ghostly troubles before someone gets hurt.

Lillia Pameroy’s visit to historic Concord, Massachusetts takes a mysterious turn after a silver mirror opens a portal to the past and sets a long-buried mystery in motion. With help from a new friend who hears whispers from the graves of Sleepy Hollow Cemetery, Lillia must uncover the truth behind a missing Paul Revere vanity set. But some secrets have been waiting a very long time to be found.

Lillia Pameroy’s visit to Arizona’s Superstition Mountains takes a dangerous turn after a stable fire draws her into the legend of the Lost Dutchman’s gold and a curse said to haunt the desert. With her new friend Sammie by her side, Lillia must uncover the truth before suspicion destroys an innocent man. But in the shadow of Superstition Mountain, the past has a way of refusing to stay buried.

On Mackinac Island, Michigan, Lillia Pameroy discovers a playroom in a hidden attic, a ghostly girl named Clarisse, and a mystery that has waited generations to be solved. As storms roll in and secrets rise from both the island and the waters that surround it, Lillia must piece together the past before it slips away forever.

Lillia Pameroy’s trip to historic Hannibal, Missouri, takes a chilling turn when she encounters the ghosts of four boys deep inside the Mark Twain Cave. As she follows their trail through notes, letters, and long-forgotten clues, Lillia begins to uncover the truth behind a riverboat gambler’s death. But in a town shaped by the Mississippi, the past does not give up its secrets easily.

Lillia Pameroy’s visit to Colorado’s rugged mountain country turns into a race against time when a strange encounter leads her to a hidden tunnel and a journey into the past. With clues scattered between an abandoned train, a ghost town, and a long-forgotten story, Lillia must solve the mystery before history repeats itself. But some paths through the mountains are more dangerous than they appear.