Larry D. Black 
Improvise [EPUB ebook] 

Improvise is an adventure story about Sonny Scroggins, a scuba driver instructor, whose peaceful life was changed by trials, mysteries, and tribulations after a high school friend asked him to help in a rescue mission of a fellow employee. From that moment, Sonny’s life was full of adventure at every turn. Sonny’s credentials as a scuba diver and an old Vietnam helicopter pilot made him the perfect choice for the rescue effort. When the plans went awry, Sonny had to improvise just to stay alive.