'The Mystery of the Missing Hour' (3 Parts) by Joseph Lidster

All irregularities will be handled by the forces controlling each dimension. Transuranic, heavy elements may not be used where there is life. Medium atomic weights are available: Gold, Lead, Copper, Jet, Diamond, Radium, Sapphire, Silver and Steel. Sapphire and Steel have been assigned.

The Cairo Hilton. December 1926.

An archaeological expedition arrives from England, ready to uncover the secrets of a long-lost Pharaoh's tomb.

But someone on the expedition isn't what they appear to be.

It's therefore lucky that when the first impossible murder takes place, two of the other hotel residents turn out to be quite the detectives…

Susannah Harker (Sapphire), David Warner (Steel), Colin Baker (Narrator), Sarah Douglas (Lady Marjorie), Ian Hallard (Arthur), Cate Debenham Taylor (Jane), Ian Brooker (Cornelius), Nigel Fairs (MC)

Directed by Lisa Bowerman

Notes:
*Featuring Sapphire and Steel