22nd century cave guide narrative.
"And here, as we pass in our virtual cyber-pod down the main stream way, we come to the top of the notorious 20 ft pitch. A 'ft' by the way, is a curious term of measurement, popular with the anglo-saxon descendants that once inhabited these parts. Look closely, and you will see a pile of human bones lined up in the bed of the stream. These are all that remains of a group of 'cavers'. These were humans who regularly entered the caves of this district. We are still puzzling over their motives, and there are many theories. The scientists who have done a quintessential spectral analysis of the bones have determined that they spent the best part of 12 weeks standing in the water arguing about how safe it was to lower themselves over the edge to reach the lower sections of the cave, which we shall see later. It appears that no agreement was reached, so a committee was established to discuss the matter further. These bones are the remains of that committee, and the meeting they convened is theoretically still in session. They seem to have died from Butcombe starvation."
"Later we shall pass a spot where the water disappears under a rock arch, which we believe used to be known as a 'sump'. A similar pile of bones has been discovered here..... "