In a literary journey from the Sierra Madre to the sea, Júpiter Mar­tínez guides us, between stories and scenes of daily life, through the astonishing—and at times dangerous—geography of Sonora. This second volume in the series Archaeology in Extreme Conditions is a personal narrative that reveals further secrets of archaeological work. With ingenuity, audacity, and a great sense of humor, the au­thor reminds us that the first step for undertaking archaeological work in an extreme environment is to learn to survive in it.