Christmas at The Grange

It's Christmas 1909, and for once Lady Hardcastle-respectable gentlewoman, amateur spy-and her lady's maid, Florence Armstrong, are setting sleuthing aside. They are invited to the festivities up at The Grange, as guests of Sir Hector and Lady Farley-Stroud.

But barely have corks been popped and parlour games played when a mysterious crime comes to light. Someone has broken in while the revellers were distracted and made off with a priceless pearl necklace. Lady Hardcastle and Flo are determ...