G. Wells referred to the concept in his short story "A Story of the Stone Age" of 1897, set in "a time when one might have walked dryshod from France (as we call it now) to England, and when a broad and sluggish Thames flowed through its marshes to meet its father Rhine, flowing through a wide and level country that is under water in these latter days, and which we know by the name of the North Sea...Fifty thousand years ago it was, fifty thousand years if the reckoning of geologists is correct", though most of the action seems to occur in what is now Surrey and Kent, but stretching out to Doggerland.