LF Sherlock Holmes/Phantom of the Opera crossovers?

[littlestclouds]

I'm curious about the existence of Holmes fic (preferably completed longfic or one-shots) either set in Leroux's Phantom of the Opera universe, or crossed over with it? Are there any Phantom AUs, with Sherlock and co. cast in the roles of Erik, Christine and Raoul? Gen/het/slash and Holmes/Watson, Holmes/Watson/Irene and Holmes/Irene accepted/welcomed. The tagged genres are what I'm most interested in reading, but I'm not terribly picky.

Book and '09 movie 'verse please (haven't seen/read any other adaptations yet, though the Sherlock DVDs are on my Christmas wishlist).

Thanks!