Can Emma save Captain Pumpernickel from his own mistake? Will Emma Harper connect the pieces of Malinda's riddle before the town's people destroy Lightning Hollow? Did Magic Mabel really betray Emma, or is there a deeper mystery going on in Lightning Hollow? Will Lightning Jack always be cursed? Follow Emma Harper on her fourth cozy mystery as she investigates Magic Mabel's secret tunnels. Escape with her in the old mine cars of Pottsville as she helps Captain Pumpernickel fend off the trespassers. Brave the mysteries of Lightning Hollow as she rushes to save Lightning Jack from a shocking fate.