John Dunn introduces the new Saturday show for young listeners.

Rex Radio by Alexander Guyan
Captain Radio and Passion-flower tangle again with Krakov, the most wicked man in the world with Nigel Lambert, Pat Keen and Garard Green
Producer Elizabeth Ornbo

4.5 Animals Unlimited introduced by Phil Drabble
Why do bats make sounds so high-pitched that human beings can normally hear them? Our pet this week is the gerbil. Our prehistoric animals range from mammoths to mini-elephants. Producer Dilys Breese

4.30 Shadow of the Pharaoh
A thriller play in six episodes set in Ancient Egypt written by Victor Pemberton and David Spenser
6: Out of the Shadow
Play produced and programme edited by Graham Gauld