Keep in mind that the Sherlock Holmes universe isn't actually PD in the US yet (or is it?) due to all the crazy copyright extensions. I think it's got another 13 years or so to go.
At least according to a recent NY Times article...
http://www.nytimes.com/2010/01/19/bo...pagewanted=all
But come on, 120+ years is fair isn't it?
edit: oops - didn't realize I'd missed the last page