“Give him to understand that we’re armed, and would defend our property to the last gasp,” was the astonishing declaration Thad made, though he could be heard chuckling at the same time, as though himself more or less amused.

“But we’re not, Thad, you know; we haven’t got more than pocket knives along with us this trip. Even those we used aboard the boat we packed up with the other junk, to be sent across to America when we wrote to that boatyard man.”

It was Bumpus who made this protest; the others understood that Thad must have some sort of little scheme of his own which he intended to make use of; so they only waited to hear its nature.

“We’ll find some of the tools to handle,” he told them, “and in the half dark even a monkey wrench, if you know how, can be made to look like a revolver, especially if you click! click! when aiming the same!”

“That’s right,” was the comment of Giraffe; “for I’ve seen the game worked myself, and to tell the truth had my knees knocking together as if I had the ague till the chap who was giving me the grand scare had to laugh outright, and broke the game up.”

“Well, we might as well go back and sit on that porch till we feel sleepy. Then Giraffe can tackle the landlord and have it out with him.”

Thad’s suggestion appeared to strike them all favorably, and it was not long afterward when they settled down to making themselves as comfortable as possible. There was more or less conversation, though gaps came between, for the boys found themselves rather tired. They had not slept as well during the last night or two as they might, owing to numerous things, worries of the mind more than of the body.

“I’m wondering what that queer far-off throbbing sound can be?” Giraffe happened to mention all at once; “I’ve been hearing it for some time, and it comes as regular as a clock, once in so many minutes.”

“And I’ve been listening to the same,” admitted Thad.

“Then perhaps you can give us an idea what causes it?” asked Bumpus, after he too had caught the odd sound, the like of which they could not remember ever having heard before.