Sherlock Holmes Tie-Ins

I found a really interesting series of steam punk Sherlock Holmes tie-in novels. It's "Sherlock Holmes: The Army of Doctor Moreau", "Sherlock Holmes: The Will of the Dead", "Sherlock Holmes: The Spirit Box" and "Sherlock Holmes: The Stuff of Nightmares". Got my hands on the last one. We will see if it's as good as the summary makes it to be.

SH tie-ins are mostly hit and miss for me. The book needs to focus on both Sherlock Holmes and John Watson and Watson mustn't be portrayed as an idiot with the IQ of a potato for me to enjoy the book. And that's hard to find because the authors tend to insert their own creations into the books and use Holmes and Watson as nothing more than a cushion for their original characters - let's mention here and then quickly forget again Laurie R. King's Mary Russell series - and I hate that. So far, the best... pastiche they are called, aren't they? The best SH pastiche was Anthony Horowitz's "The House of Silk". That book is as close to perfection as it gets, IMHO.

And what about you, dear friends? Do you read Sherlock Holmes' pastiches? Do you have a favorite piece?