Holmes and Watson soon notice a pattern in the thefts; a pattern that points to the incidents being an inside job. But how are they to prove their theory?
But as the heatwave continues across London, and the thefts increase, Holmes is struck by a new revelation about the crimes. He realises their thief is more cunning than he first suspected, and to catch them, he and Watson will have to be one step ahead of their crafty opponent.
Mabel Swift is a fan of mysteries, especially Sherlock Holmes mysteries.