# Count Sylvius — The Casebook of Sherlock Holmes character guide

> Count Sylvius in The Casebook of Sherlock Holmes by Arthur Conan Doyle.

**Role:** supporting

**Also known as:** Count, The Count

**First appearance:** 0004-the-adventure-of-the-mazarin-stone

## Who they are

A cunning foreign aristocrat entangled in the theft of the Mazarin Stone.

## Links

- HTML: https://www.betterreads.online/discover/the_casebook_of_sherlock_holmes_se/characters/count_sylvius
- Book: https://www.betterreads.online/discover/the_casebook_of_sherlock_holmes_se
- All characters: https://www.betterreads.online/discover/the_casebook_of_sherlock_holmes_se/characters