Sherlock Holmes Investigates. The Case of Lady Chatterley's Voodoo Dolls

Sherlock Holmes and Dr Watson travel by horseless carriage from Winchester to the New Forest and beyond. The good Doctor is delighted to drive this novel conveyance, while others are not so sanguine.
They investigate the theft of some Voodoo Dolls from Lady Violet Chatterley, and find an evil intent behind an apparently simple crime.
The friends use logic and scientific knowledge to trace the connections between Lady Chatterley, Dr Livingstone,the Voodoo Dolls, an evil Lascar, a Gypsy Seer, an exotic bird, an African Witchdoctor, a Christian missionary, and Her Majesty the Queen.
With determination, and some help, they race to avert a shocking tragedy and an evil curse.
There is an explosive climax, and some tears are shed.