The Legend of Annie Murphy (Library Edition) (The Cooper Kids Adventure Series) Library edition

Two vague shapes were coming toward Jacob Cooper, floating and drifting through the ruins like wisps of smoke.
Dr. Cooper jumped up, ?Jay! Lila! Are you there? Can you hear me??

In 1885, the Murphy mine struck gold. According to legend, Annie Murphy killed her husband out of greed. Just before she was to be hanged for the murder, she escaped. Now, a hundred years later, there have been sightings of Annie Murphy?s ?ghost.? The Coopers unwittingly become involved in a mystery that finds them caught between the past and the present.