The first of the classic mysteries featuring governess-turned-detective Miss Silver, who investigates a deadly conspiratorial ring. Charles Moray has come home to England to collect his inheritance. After four years wandering the jungles of India and South America, the hardy young man returns to the manor of his birth, where generations of Morays have lived and died. Strangely, he finds the house unlocked, and sees a light on in one of its abandoned rooms. Eavesdropping, he learns of a conspiracy to commit a fearsome crime.

The superlatively analytical Inspector Hemingway is confronted by a murder that seems impossible – no one was near the murder weapon at the time the shot was fired. Everyone on the scene seems to have a motive, not to mention the wherewithal to commit murder, and alibis that simply don't hold up.

Selchester Castle in 1953 sits quiet and near-empty, its corridors echoing with glories of the past. Or so it seems to intelligence officer Hugo Hawksworth, wounded on a secret mission and now reluctantly assuming an altogether less perilous role at Selchester.

Lady Emily Hardcastle is an eccentric widow with a secret past. Florence Armstrong, her maid and confidante, is an expert in martial arts. The year is 1908 and they've just moved from London to the country, hoping for a quiet life. But it is not long before Lady Hardcastle is forced out of her self-imposed retirement. There's a dead body in the woods, and the police are on the wrong scent. Lady Hardcastle makes some enquiries of her own, and it seems she knows a surprising amount about crime investigation...

At the end of her first unsuccessful season out in society, Lady Georgiana has all but given up on attracting a suitable man - until she receives an invitation to a masked Halloween ball at Broxley Manor. Georgie is uncertain why she was invited, until she learns that the royal family intends to marry her off to a foreign prince, one reputed to be mad.