When Bennie Gray first moved into Grays Mews there was water in the basement and Benie discovered the famous hidden River Tyburn.
Before Oxford Street took its present name in the 18th century, it was known as Tyburn Road, which led to the Tyburn hanging gallows at the site of Marble Arch and Tyburn Lane (now Park Lane). The river rises at Shepherds Well in Hampstead and flows through Regents Park and the West End to the Thames via The Mews.
As the area became built up the river was culverted, but there is one place the clean and running water of the Tyburn could still be seen and that is beneath the basement of Grays Mews, where it has become a popular tourist attraction full of golden fish. Now the Mews is shutting I do not know what will become of this attraction but I understand that the goldfish will be coming to Alfies Antiques with us!.