An epic thriller of the silent world beneath the sea. Many miles deep, where sunlight never penetrates.. While man reaches ever further into space, the ocean deeps - earth's last frontier - remain unconquered. In this novel Martin Caidin blends authentic ongoing scientific research with imaginative predictions in an adventurous, visionary novel of discovery under the sea.
September 1978 : UK Paperback
March 1978 : USA Paperback