Betrayal in Eden(1976)
(The fourth book in the William Kendall series)
A novel by Philip Chase (Philip Friedman)
Beneath the surface of the ocean, the US Navy is creating a secret base which will give it an edge in mining the sea floor as well as aid in the defense of the country. The Soviets and others are determined to see it stopped. William Kendall and group are in the thick of things over it.
Used availability for Philip Friedman's Betrayal in Eden
August 2017 : USA, Australia, Canada, UK Kindle edition