Four Sherlock Holmes and a Vampire (Who Is Also One of the Aforementioned Sherlock Holmes)

“In Four Sherlock Holmes and a Vampire (Who Is Also One of the Aforementioned Sherlock Holmes)—officially abbreviated as either Four Sherlock Holmes and a Vampire or FSHV—four players play four Sherlock Holmes who team up to solve mysteries and one-up each other. Secretly, one or more Sherlock Holmes may be vampires. Can the four Sherlock Holmes find out who among them could be a creature of the night?”