1. A Message from the Deep Sea

8

. 20 September 1971. 50 min

This episode features Dr Thorndyke, played by John Neville, who is first a medical man and second a solver of mysteries. A young girl has been murdered in her boarding house and the solution looks obvious - but is it? Neville plays the sleuth with aplomb and this is a strong opening episode. The character is arrogant, capable, and likable - and of course his intelligence makes his police colleagues and/or adversaries look like idiots!

2. The Missing Witness Sensation

7

. 27 September 1971. 50 min

Max Carrados, the blind detective, solves the case of a bank teller shot at his counter.

3. The Affair of the Avalanche Bicycle and Tire Co.

6

. 4 October 1971. 50 min

Horace Dorrington solves the mystery of a case of sabotage on a bicycle track.

4. The Duchess of Wiltshire's Diamonds

7

. 11 October 1971. 50 min

Simon Carne devises an ingenious way of keeping the Duchess of Wiltshire's diamonds safe from theft.

5. The Horse of the Invisible

6

. 18 October 1971. 50 min

Carnacki solves the case of an invisible horse that is haunting a family of the eve of a wedding.

6. The Case of the Mirror of Portugal

6

. 25 October 1971. 50 min

Horace Dorrington clears up the mystery of the theft of a valuable diamond.

7. Madame Sara

7

. 1 November 1971. 50 min

Dixon Duce helps solve a murder case.

8. The Case of the Dixon Torpedo

6

. 8 November 1971. 50 min

Jonathan Pride gets involved in a case involving a secret weapon, an eccentric inventor and forged roubles.

9. The Woman in the Big Hat

7

. 15 November 1971. 50 min

Lady Molly of Scotland Yard solves the murdeer of a respectable man.

10. The Affair of the Tortoise

0

. 22 November 1971. 50 min

Arhtur Hewitt gets mixed up in a case involving voodoo and the disappearance of a dead body.

11. The Assyrian Rejuvenator

0

. 29 November 1971. 50 min

Conman and invesigator Romney Pringkle exposes a swindle and makes a profit.

12. The Ripening Rubies

0

. 2 December 1971. 50 min

Bernard Sutton is called in to help stop a series of jewel robberies.

13. The Case of Laker, Absconded

0

. 9 December 1971. 50 min

Arthur Hewitt and Jonathan Pride band together to find a bank clerk who has disappeared with £ 15,000.