"Where are you, Hal?"
"Sh—h—h!" whispered Hal. "Come over here."
Uncle John obeyed silently.
There came a whistle from without. Hal recognized it as that of Chester.
He hurried to the window and peered out.
"What's the matter?" he called.
"The window is too high, I can't reach the sill," was the reply. "Give me a hand."
Hal started to lay down his gun and lend a hand, but thought better of it. He called to Uncle John.
"Help Chester up," he whispered, and again took his position guarding the doors, with drawn revolver.
Uncle John approached the window and leaned out. He seized Chester's uplifted hand, and pulled. A moment later Chester came scrambling through the window.
"A pretty good climb, if you ask me," he said.