"Do you dare to threaten us?" questioned Slogwell Brown and the tone of his voice showed his uneasiness. A glance over his shoulder had shown him the other two boys at the doorway of the second cabin, and also armed.
"I'm telling you to keep away from here—that's all," answered Jack. "You can come back when Mr. Stevenson returns."
"I—I think maybe it would be better for us to retire," stammered Professor Lemm. "We—er—don't want to run the risk of being shot. Those boys are very hot-headed, and there is no telling what they might do if we exasperated them."
"I'm not going to give in to a bunch of school boys!" stormed Slogwell Brown, who, in his manner, was every bit as much of a bully as his son.
"But if they should shoot at us——"
"I don't think they've got the nerve to do it. They are only putting up a big bluff."
"Don't you be too sure about that," put in Nappy, who was just as much scared as was the professor. "Those Rover boys are game to do almost anything when they are aroused."
"We've got to remember one thing," came from Slugger. "There are four of them, and each of 'em has got a gun."
"I wish I had brought a gun along myself," said his crony.
"We should have armed ourselves," grumbled Slogwell Brown. "It was a mistake to come over to this island without so much as a pistol. If I only had some sort of a weapon, I'd show those boys a thing or two."