Breakthrough - Michael C. Grumley

Breakthrough is the first novel in the Breakthrough series. This book is available through kindleunlimited.

Commander John Clay is an Electronics and Signaling investigator for the Department of Naval Investigations. When a nuclear sub in the Caribbean seems to have jumped 15 miles off course, John is called in to figure out how it happened.

Alison Shaw is a marine biologist. Alison and her team are getting ready to initiate the first two-way communications between humans and dolphins.

Kathryn Lokke is the directory of the United States Geological Survey. Kathryn is currently concerned with the geological stability of Antarctica. A serious earthquake near the Ronne ice shelf may indicate it's going to collapse.

As this tale progresses the efforts of John, Alison, and Kathryn converge. They've discovered something new, exciting, and dangerous. This is a great story. It has all the science, suspense, and danger you could ask for. Very highly recommended.