An unprecedented crime wave is remorselessly sweeping across the city of London....
How have the criminals achieved so much recent remarkable success?
Inspector Lestrade does not know which way to turn. Holmes and Watson follow a series of tantalizing clues leading them closer to the darkness....
Holmes begins to sense a creeping pattern behind their investigation....
Could this really be the great detective's final chapter..?
Audiobook is further enhanced with atmospheric music and sound effects.
