Have Shed, Will Travel

The Louvre in Paris, in the latter half of 1979, was briefly home to a most curious artifact: a police box from the streets of London, some twenty years earlier. Or so it seemed... this police box hummed as if it was alive, and also happened to be considerably bigger on the inside than the exterior dimensions would suggest. Not that visitors to the Louvre would have known that.

At the same time, an attempt was made to steal one of the museum's most famous exhibits: Leonardo da Vinci's painting La Gioconda, better known in the English-speaking world as Mona Lisa. Apparently someone scribbled over the painting, years later, with invisible ink.

About a year later, the same police box appeared unnoticed on Brighton beach, and a robotic dog got wet.