Mezzosangue!

Edward Santos, gunslinger and arms dealer, clashes with Tex! His band is destroyed, the cargo burned and he himself, wounded, fortunately manages to escape death. It is the young half-breed Makua who picks him up and rescues him. While the Ranger is busy dealing with the raids of the rebel Domingo, Santos slowly recovers and almost playfully instructs his new friend in the use of the Colt. Surprisingly, Makua turns out to be a natural talent, quickly becoming a fearsome gunslinger, to the point of dreaming of challenging even Night Eagle... The young Makua half-breed grew up quickly. He's a real magician now, with the Colt. The Mescaleros, who once despised him, speak his name with fear and respect. Edward Santos taught him to kill, and now he uses him to successfully resume his shady dealings along the border with Mexico. It will be up to Tex to hunt them down, beyond the Rio Grande, to Santos' hideout. Here, he and Carson will face master and pupil in a bloody final battle...