When Jackie Lawson and her friends receive a cryptic invitation to Shadow Peak Ranch, they expect a quiet getaway—but what they find is far from peaceful. Strange sightings of a ghostly horse, sabotage at the ranch, and whispers of hidden treasure pull the Adventure Squad into their biggest mystery yet. With treasure hunters hot on their trail and ancient traps blocking their path, Jackie leads her clever team on a race against time. As they navigate the dangers of the rugged mountains and an eerie underground cave, they uncover secrets that could change history. But the deeper they dig, the more they realize—some mysteries are meant to stay buried. Packed with snappy dialogue, daring action, and a dash of the supernatural, The Mystery of Shadow Peak is an unforgettable adventure that will keep readers on the edge of their seats!