Three O'Clock's Dark Night: The Number Mysteries

A simple camping trip turns into a nightmare when a dying man taps repetitively on the side of the motor home next door to Samantha Blackwell and her husband. Sam is convinced that the tapping is a message, some kind of code, left by the victim.

When the local minister tells her in confidence that he was supposed to meet the victim and had, in fact, been there when the man was murdered, he pleads for her help.

What can Sam do? Her friend is in trouble.

To observe one of the suspects, Sam disgu...