“Owoooooo!”

It was like the wail of some anguished spirit.

With one accord, the boys felt their hair rising upon their scalps. No one said a word. The dreadful wail died away, then broke out again.

“Owoooooo!”

Then came Chet’s voice, from between chattering teeth.

“Wh—wh—what was that?”

“Some of you chaps playing a joke on us?” demanded Frank suspiciously.

“N-not m-me,” declared Chet.

“Me neither,” said Joe.

“It wasn’t me,” Biff clamored.