Copper King's Secret, The by Nick Robs; 2026. Softcover.

The explosion that killed Heinrich Vogel was no accident.

Montana's richest copper baron died in his own mine, crushed under timber that shouldn't have fallen. The widow wants answers. The territorial marshal wants to call it an accident. And someone wants Ezra Miller dead before he figures out why.

The Copper King left behind more than a fortune; he left a secret buried in rock and blood. Now, a Pinkerton detective with his own agenda, rival mine owners circling like wolves, and whispers of silver-bearing copper ore are pulling Ezra into something deadlier than a simple murder.

In Blackwater Ridge, Montana, copper built an empire. But silver might destroy one.