I went walking by the river the other day, and saw something I didn’t notice before at the side of the pavement. It was a raised cement platform standing on its own surrounded by large gravel around it. Embedded into the platform were three metal covers like manholes, except made from much heavier iron material. Two of them were manhole sized, about 2.5 feet in diameter, and the third one was larger, close to 4 feet diameter.
They were stormwater drains. Furthermore, the largest one was ajar, the lid tilted half open.
I stood on the platform and peered into the ajar stormwater drain. All I could see was dark water standing about a foot below the surface of the drain, clogged with debris and a bit of rubbish.
I thought, something has crawled up from the deep and escaped. Something hidden and secret is now at large, and civilization is no longer safe.
A few days later, I walked by the same place. The large drain was covered over.