For the rest of the journey we hugged the ground. I wondered if the creature knew about radar-equipped helicopter gunships. By now we had passed the larger city and entered a rougher, more mountainous region. We were low enough that I could see the remains of a road that hadn’t been used in some time—scrubby bushes were growing in the middle of it where the asphalt had cracked. At one point a bridge that once connected two sections of the road had fallen away into the canyon below and now lay in a skeletal heap of concrete flesh and exposed metal bones.