There was a high fence around the yard, and it seemed that they might be in a trap.

Frank felt for a clothesline and found it. He seemed to see in the dark.

"Over the fence, Harry—over the fence!" he whispered.

"Come on!"

"In a moment."

"What are you doing?"

"Lowering this line, so it will just catch Mr. Officer under the chin. Get over the fence."

Rattleton obeyed. He found a place where he could scramble to the top of the fence, and there he sat, calling to Frank:

"Come on—hurry!"

The policeman came out into the yard. It seemed that Merriwell had been waiting for him. Frank started to run, and the officer started after him.