John Tone was good at his job. Some would say ruthless. If there was killing to be done, Tone showed no mercy. In another time, far across the ocean, he had lost the only person he had ever loved—and he’d been dead inside ever since. That was the hand Fate dealt him, and he would play it out. But when a powerful criminal from San Francisco’s notorious Barbary Coast makes him an offer he can’t refuse, Tone himself becomes the hunted one. He has to draw out six of his client's worst enemies—making himself a target for the men he would kill. And against those odds Tone knows he may be loading the six chambers of his Colt for the last time…