Jagged Murder Stone

The Jagged Murder Stone remains an enigmatic and absent entity throughout the Sherlock Holmes series, with no documented appearances or developments across the books. In the expansive chronicles of Holmes' cases, from his early adventures to later exploits, the stone fails to materialize as a plot device, artifact, or clue, leaving its 'jagged' legacy of murder perpetually untold. This void underscores the selective nature of the canon, where countless mysteries are pursued while others, like this stone, linger in obscurity.