Black Sun

"Hoping to recover buried childhood memories, Monte Segundo visits the graves of his murdered parents. There he discovers Ahayaca, a fugitive being pursued by Mexican rurales. Segundo helps Ahayaca flee to a Yaqui village near Tucson. With the rurales following close behind, Monte and Ahayaca then leave Tucson and head south to Sasabe, Arizona. The rurales, believing Ahayaca knows the location of the lost Tayopa mine, join forces in Tucson with an arms dealer and cattle rustler. They, in turn, trail Monte and Ahayaca to Sasabe and eventually to Ahayaca's village, the home of a secretive tribe that fled Mexico four centuries earlier. But the rurales and arms dealer soon discover that these Indians are like none they have ever encountered before"--