The real name behind Belle de Jour has been uncovered. It's Dr. Elizabeth Magnanti.
There has for years been speculation about who it might have been: all sorts of unlikely people were suggested as possibly being the blogger turned author who wrote about her adventures in prostitution.
But now the secret is out: she's a research scientist who went on the game simply to pay the bills.
The other part of the secret, that she's a darn good writer, we've known for ages.