The Rediscovered Cases Of Sherlock Holmes5 books in series
The Demon of the Dusk Summary
Sherlock Holmes and Doctor Watson are summoned to Theobald Grange, the Warwickshire home of Lady Heminworth.
Being of a nervous and superstitious disposition, her Ladyship lives in fear. Her husband and elder son were recently murdered, apparently by the ghost of a court jester who was executed on the site centuries before. The apparition has warned that she, too, is to die.
Holmes rejects a supernatural explanation, although his adversary seems unaffected by gunfire and is able to take flight and disappear. The "Great Detective" brings his powers to bear, but still the killings continue....