Under Water Secret by Robert C. Waggoner
Series: Brad Pratt and the Batt Team, Book 4.
Approx. 44,500 words.
Published on September 22, 2012.
An action packed novel of a new method of terrorism. Submarines are used to strike targets in the USA. Brad Pratt and team are assigned to stop them at any cost. To complicate matters, he discovers the terrorists are going to attack his home on the Pacific Coast.