1796, England
Heavily pregnant Lady Ottilia Fanshawe should not really be travelling. But when her sister-in-law dies, she goes with her husband Francis to comfort her brother and her two nephews.
And of course it’s not long before the services of her alter-ego, Lady Fan, are required.
While playing in the woodlands, the two boys come across a gruesome discovery. A dead man is hanging from a tree.
The corpse is quickly identified as the local justice, Hector Penkevil, a man universally disliked for his meanness.
And it’s soon clear that his death was not suicide, but murder.