The crystalline clear water of the Ribbon brimmed over the edge of the drop in a smooth, gentle arc, falling in a soughing and frothing cascade among boulders as black as onyx. It broke up on them and vanished in a white foam, from where it spilt into a wide pool which was so transparent that every pebble and every green strand of waterweed swaying in the current could be seen in the variegated mosaic of the riverbed.
