The Adventure of the Speckled Band that of Dr Roylott. Holmes and Watson arrange to spend the night in Helen's room. In darkness they wait; suddenly, a slight metallic noise and a dim light through the ventilator prompt Holmes to action. Quickly lighting a candle, he discovers on the bell cord the "speckled band"—a venomous snake. He strikes the snake with a stick, driving it back through the ventilator. Agitated, it attacks Roylott, who had been waiting for it to return after killing Helen. Holmes identifies the snake as a "swamp adder" and reveals to Watson the motive: the late wife's will had provided an annual
The Adventure of the Speckled Band script. Conan Doyle was "charmed with the play, the acting, and the pecuniary result," and determined to cash in on its popularity. He wrote his own play in what he later referred to as "record time," and so saved the situation. "The Speckled Band" was Arthur Conan Doyle's third stageplay and was the second Holmes dramatization. It was based with some modifications on the short story of the same name which, according to Adrian Conan Doyle, was his father's favorite Sherlock Holmes tale. Conan Doyle engaged H. A. Saintsbury, who had toured with the Gillette company, to portray Sherlock Holmes;