What is the conflict in chapter one in The Pearl?

Kino and Juana's attention is suddenly drawn to a deadly scorpion descending one of the ropes supporting Coyotito's hanging box. The scorpion brings to Kino's mind the song of evil, brought by any enemy of the family, and as the scorpion draws closer to the happily gurgling infant Juana begins to recite both pagan and Christian prayers of protection. Kino slowly approaches the deadly creature but Coyotito's laughter causes the rope to shake and the scorpion falls onto the boys' shoulder. The scorpion stings Coyotito before Kino can pull it away and stamp it to death on the earth floor.