Turn-of-the-century detective Isaac Bell goes undercover as a coal miner for his first solo mission in this novel in Clive Cussler's #1 New York Times bestselling series. It is 1902, and a bright, inexperienced young man named Isaac Bell, only two years out of his apprenticeship at the Van Dorn Detective Agency, has an urgent message for his boss. Hired to hunt for radical unionist saboteurs in the coal mines, he is witness to a terrible accident that makes him think something else is going on&h