They were just caves with obscene, modern graffiti. A pottery shard was shining under a concretion drip. Unfortunately, the rock where the head and the forequarters had been painted has collapsed. When we realized that the river disappeared underground inside a cave at the foot of a vertiginous cliff, the anomaly vanished as well. A few moments later, it appears, several more leagues away, cut by a deep gorge.
nest...