A young woman dreads dying in the same bizarre way as her sister.

Why is someone randomly smashing statuettes of Napoleon?

What is the true purpose of the "Red-Headed League"?

Great Britain is in deadly peril when plans for a new submarine disappear, stolen apparently by a junior clerk who has been strangely murdered. Brother Mycroft leaves his accustomed habitat in desperation to insist the great Sherlock act.

A young man is falsely accused by his father of stealing valuable British jewels; but Sherlock Holmes uncovers an even more sordid plot. Will the wealthy banker recover the treasure and redeem his honor?

What is the sinister secret of the house with the copper beech-trees outside it?