Kaye Topping Smith

Strange happenings occur at Corinne's riding school when she finds a plaque bearing the name of the Grey Ghost in the tack-room.

If you've not yet met Sally Lockhart, prepare to be bowled over. The beautiful, smart 16-year-old can ride like a Cossack and shoot like a demon - and now she's braving terrible danger to hunt down her father's killer! Her journey will take her from the grimy streets of London to a Maharajah's Indian palace and the opium dens of China, unravelling a rich and colourful mystery at whose heart is a priceless jewel soaked in blood...