5/5 Will Sid Halley dare to reveal the truth behind the doping and phony racing syndicates?
BBC Radio 4 Extra
4/5 Sid Halley must investigate the loss of three champion racehorses.
3/5 Determined Sid Halley returns to England to face threats from a gang of racecourse dopers.
2/5 When the favourite for the Newmarket 2000 Guineas race was nobbled, where was Sid?
1/5 Ex-jockey Sid Halley must guard a horse, probe a syndicate and find a swindler.
In 10th-century Japan, Lt Yukinari finds himself lost within a maze of palace intrigue.
8/10 With Andrei arrested, will anyone help pregnant Anna with her inquiries?
BBC Radio 4
10/10 Volkov gives Andrei a way out of execution, while Anna waits to give birth in hiding.
9/10 Andrei comes face to face with Gorya's father Volkov, and learns what the powerful can do.
7/10 Dr Brodskaya has been arrested. Now, a car door slams beneath Andrei and Anna's flat.