unsolved mysteries ghosts

Black Holes: The Great Mystery of the Universe - by Don Nardo (Hardcover)

Cunningham, Biscuit and the Ghost of Captain Nichols - by Emory Jones (Paperback)

Amelia Shadows and the New Head Ghost - by Matthew Dow Smith

Capital Mysteries #5: Who Broke Lincoln's Thumb? - by Ron Roy (Paperback)

Bikenapped - (Jackson and His Mystery-Solving Superbike) by Scott Nickel (Paperback)

A Ghost in the Castle - (Kingdom of Wrenly) by Jordan Quinn (Hardcover)

The Missing Horse Mystery - (Nancy Drew) by Carolyn Keene (Paperback)

The Happy Hollisters and the Cuckoo Clock Mystery - by Jerry West (Paperback)

Bakery Ghosts: Revenge of the Rice Cake - by Gayoung Bb Yang

Captain Kidd's Treasure (Unsolved) - by Dinah Williams (Paperback)

Dog Whisperer: The Ghost - by Nicholas Edwards (Paperback)

Ghosts in Cemeteries - by Abby Doty (Paperback)

The Chinese New Year Mystery - (Nancy Drew Notebooks) by Carolyn Keene (Paperback)

Mystery at Plymouth Rock - (Real Kids! Real Places! (Paperback)) by Carole Marsh (Paperback)

The Mystery in Las Vegas - (Real Kids! Real Places! (Paperback)) by Carole Marsh (Paperback)

Ghost Followed Us Home - (Frightmares (Paperback)) by Peg Kehret (Paperback)

The Mysterious Missing Matzoh - by Alan Katz (Hardcover)

The Mystery at the Eiffel Tower (Paris, France) - (Around the World in 80 Mysteries (Paperback)) by Erin Kelly (Paperback)

The Ghost Tower - (Everyone Can Be a Reader (Middle Grade Contemporary)) by Gillian Cross (Paperback)

The Mystery of the Thinking Rabbit - by Clarice Lispector (Hardcover)

The Happy Hollisters and the Cowboy Mystery - by Jerry West (Paperback)

No One Leaves the Castle - by Christopher Healy