The Wessex Cup and Holmes's solution

1 Winchester racecourse from above on Wessex Cup day, with a packed grand stand

2 A bay colt in black and red canters past Colonel Ross, who does not recognise him

3 Six horses thunder up the straight as the disguised Silver Blaze gathers to burst past

4 Holmes quietly answers the Colonel's request for the murderer of John Straker

5 Holmes steps past Colonel Ross and lays his hand on the disguised bay's neck

6 In the Pullman car, Colonel Ross slaps his knee as Holmes watches, dryly amused

7 Holmes snaps his arm out in a kicking arc to show how the horse struck Straker