In the third book in the series of novels about Winneta, Winneta and Old Shatterhand, together with the old Westman San-Ier, he pursues the murderer of the San-Ier family, Fred Morgan. Along the way, it turns out that Fred Mogran is involved in a number of other crimes, in particular in the murder and robbery of jeweler Marshall. Together with the heroes of the book, we enter into a fight with bandits in the semi-desert of Llano Estocado, find ourselves in the camp of the warlike Comanches and meet with the gold miners of Sacramento. In the second part of the book, Old Shatterhand with another Westman Fat Walker and Winnetou save the inhabitants of the railway station from an attack by Indians from the Oglala tribe .