The Crimes of Dr. Watson -- Duane Swierczynski

Of course Duane Swierczynski swears he didn't write this book, that it's actually a letter written by Dr. John H. Watson. Maybe it is, because who's going to believe that the author of books like Secret Dead Men, The Wheelman, The Blonde, and The Redhead would write a book in the style of one written by the biographer of Sherlock Holmes? Much less an interactive mystery with all the clues right there for you: an old newspaper, a timetable, diagrams, and other things, including a downright wonderful catalog from the Veneziale Brothers. Well, after taking a look at the catalog, you might believe that Swierczynski had a hand in this, after all. And after reading some of the jokes that Dr. Watson cracks (though Watson seems unaware of them, himself).

If it's not too late, maybe you can con someone into giving you this for Christmas, and you can see if you can figure out the answer and help Dr. Watson get out of jail. Yes, jail. What? You didn't know he was ever jailed? Then you definitely need to read this book.