For all we know, or think we know, about Sherlock Holmes and Dr. Watson, what we don't know is far, far greater. In one of the duo's most exciting cases, The Adventure of the Speckled Band, we know when Helen Stoner arrives "in a considerable state of excitement" at the door of 221B Baker Street, seeking the assistance of Holmes and Watson: "It was early in April in the year '83..." But what happened during the rest of 1883? Or all of 1884?

To help fill the void, we have asked today's top Sherlockian writers to rummage through their Watsonian correspondence and uncover the many mysteries left untold until now.

There's a new story for every month of the year, forewords from noted Holmesians, and a gorgeous cover from Jeffrey McKeever, whose work continues to grace the pages of The Strand Magazine!