The Striker - Isaac Bell #6

The Striker is the sixth novel in Clive Cussler's Isaac Bell 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. And it begins to become clear that the trouble doesn't stop with the men he's looking for.
Much bigger stakes are in play. Little does he know just how big . Given exactly one week to prove his case, Bell quickly finds himself pitted against two of the most ruthless opponents he has ever known, men of staggering ambition and cold-bloodedness .