I due complici

The Shoshone raiders of Wolf Tooth and Red Spot infest the Black River region, while Zagor finds himself leading a group of people towards the trading post beyond the Pine Wood. In the group there is a rich merchant with his beautiful young wife Lisa: an old acquaintance of the trapper Doc Lester (with whom he has already dealt in the past), a very dangerous woman...
In fact, while the Pine Wood trading post is besieged by Shoshone raiders, Lisa's new husband dies (as had already happened to the previous one), and the culprit seems to be Jan, her new suitor.
The fight against the Shoshone is desperate. But Zagor kills their leader Red Spot in combat and the raiders retreat. Lisa, however, is flirting with Doc again: will the trapper be able to resist the charm of the woman who has turned his life upside down this time? And what are the dark secrets of that “femme fatale”?