Having saved the Miller Ranch, Tex and Carson discover that the Comanches trade with the Mexican, Fidel Romulio, who, in order to seize the treasures of Esmeraldas temple, is lying in wait for the queen who is determined to bring the Aztec civilization back to its ancient splendor. To find out more about it, the pards go to Pilares where El Morisco, a scholar of occult sciences, lives with his gloomy servant Eusebio. Tex, under the influence of peyote, sees an old enemy with whom he will soon clash again. Having defeated Romulio and buried Esmeralda, who was mortally wounded in the clash with the bandits in her pyramid, the Rangers face El Plateado, a bloodthirsty Apache who kidnaps white women...
In this issue: the preceding adventure extends from page 5 to page 93 (artwork by Letteri); from page 93 to page 130, Fort Apache (artwork by Galeppini).