Evil is a silent hunter.
Only the dead float
From the great suspense Best Seller about the ghost ship Mary Deare!
The most cataclysmic event in man's history!
It waits underwater...to skin you alive!
A honest man is forced to become a heartless killer, and an innocent woman is targeted for death...
In the warm Caribbean, dive underwater with a young marine biologist as she learns the secrets of wild dolphins.
UNCLE SAM'S UNDERWATER COMMANDOS! (original print ad - all caps)