Count Negretto Sylvius

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" We give you best, Holmes. I believe you are the devil himself.
— Neggreto Sylvius to Sherlock Holmes
"

The Count Negretto Sylvius is a fictional character and the main antagonist of the short-story "The Adventure of the Mazarin Stone" published in October, 1921. He is presented as a half-italian aristocrat, thief and crook, and lunatic as he preaches better manners in a good mood than worse in a bad one.

Biography

To be added

Gallery

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