Clue 4: The Caller

It was a dark and stormy night. The butler, Mr. Jenkins, was in a panic.

A phone call had been made from the library, but no one had seen or heard anything.

The only clue was a cryptic message scrawled on a piece of paper: "They're coming for us."

The room was filled with an eerie feeling of being watched.

The detective had to find out who made the call and what they meant.