Murder in the Mine - The Lost Gorge Mysteries, #4

When Liam stumbles onto a hundred-year-old murder, he releases a killer a century in the making. Back in 1922, part of the Lucky Star mine collapsed on its unlucky owners, entombing their bodies in the mountain. To keep anyone else from dying in the unstable mine, the townspeople dynamited the entrance and hid the location forever. A hundred years later, Liam Orrick, a direct descendant of one of the miners stumbles onto the abandoned mine.
With the help of historian Catherine Kessler, he plumbs its deadly depths to discover two bodies-one a skeleton and one a whole lot newer. With that discovery, the mine is investigated and its dangers awakened. When descendants of the cursed miners start dying, Liam and Catherine know their best chance to stop the deaths in the present is to solve the mysteries of the past.