The doom that came to Tunwich

It was three weeks before those outside Tunwich realised what that last bout of roadworks had wrought. It took them another three weeks to work through the accumulated go-slow zones, diversions, reversions, revisions, turnbacks, turnarounds, roundabouts and traffic police. And when they did, they discovered that Tunwich had been cut free, excised from the city, and was sunk without trace. There was a lake there now. At least there were ducks.