"Oh!" he mouthed, as he saw a dark figure striding forward.
Frank did not show signs of alarm, for he seemed to have partially guessed what was coming.
"Whoa!" he called to the horse that was only too willing to stop; and then the two boys heard a gruff voice, very full of authority, exclaiming:
"Hold up, there! Both of you are under arrest!"
CHAPTER IV
SURPRISING CHIEF HOGG
Lanky gave a groan of disgust.
"That just finishes me! I thought sure we'd come to a bad end," he grumbled.
On the other hand Frank was chuckling as if more than a little amused.
"We surrender!" he exclaimed, quickly, elevating his hands to show that he was contemplating no manner of defense.