"I declare, I've been too busy all day to even think of the mail."
"I'll look."
Penny went to the box at the front door. There were three letters. Two for Mr. Nichols and one for herself. The latter was addressed in pencil on a cheap yellow envelope.
"Wonder who it's from?" she thought with interest.
Quickly, she ripped open the envelope, glancing at the signature which had been signed at the bottom of the brief note.
"Jerry Barrows!" she exclaimed.
Eagerly she read the message.
"Sorry I couldn't keep the appointment with Mr. Nichols," the boy had written. "Tell your father to be on guard. His life is in danger."