Advent Calendar: Criminal Investigations

"Elementary, my dear Watson."

London, December 1895. A crate with no sender's name arrives at 221B Baker Street: a tiny Gothic house of blackened oak, with twenty-four numbered doors. Behind each door waits an object, a card in violet ink, and a new mystery for Sherlock Holmes to solve.
A stolen fortune in diamonds. A ghost that leaves no footprints in the snow. A Stradivarius swapped for a copy. A candle that lights itself in a church vestry. Twenty-four nights, twenty-four investigations, e...