蜜芽传媒

Professor Challenger explains the deadly peril the Earth now faces travelling through the cosmos.

Written by Sir Arthur Conan Doyle - a sequel to The Lost World - first published in The Strand Magazine in 1913.

Abridged by Donald Bancroft.

Read by Peter Pacey.

Producer: Maurice Leitch

First broadcast on 蜜芽传媒 Radio 4 in December 1983.