"They mean business this time and no mistake," thought Nat.
Tiptoeing back he told the others what he had seen.
"Maybe we can ketch them napping," said Cal, "oh, if only we had a telephone, the sheriff could nab the whole pack."
"Yes, but we haven't," said the practical Nat.
Cal tiptoed to the door and opened it a crack. If there had been any doubt that they were closely watched it was dispelled then.
Zip!
Phut!
Two bullets sang by Cal's ears as he jumped hastily back, and buried themselves in the door jamb.
"Purty close shooting for moonlight," he remarked coolly.
"What are we going to do?" demanded Joe.