BOTH Mr. Lewis and Mr. Holton smiled. It was evident that they had not expected this.

“That’s the only thing that’ll satisfy you?” the former asked, his mind working rapidly.

The young men nodded.

“We’ll be careful and do all we can for the good of the expedition,” said Bob anxiously. “Please arrange to take us along.”

There was a period of suspense. Then the men looked at each other.

“What will we say?” Joe’s father asked, totally undecided.

Mr. Holton had been mentally debating the subject. Now he was ready for an answer.

“Let’s let them go,” he said. “They’re as big and strong as we and are usually equal to any crisis. You see what they did to this gang of men. Shows they are resourceful, and that’s what you have to be in a strange land where danger lurks at every step. In my opinion they’d be a valuable asset to the expedition.”

The youths looked at Mr. Holton gratefully. They felt that the battle was nearly half won.

For nearly a minute Mr. Lewis was silent. Then he spoke with decision.

“I think you’re right, Howard,” he said. “We’ll have a talk with their mothers this afternoon, and I am of the opinion that they’ll give their consent if we go at them right.”

“Fine!” cried Bob joyously. “Do your best to win them over. I think they’ll agree to let us go, especially since they have so much faith in you. But say! You haven’t told us who all intend to make up the expedition. There isn’t to be a large number, is there?”

“No,” Mr. Holton answered. “We only intended to have three, Mr. Lewis, an anthropologist, and myself, but if you boys accompany us the number will, of course, be raised to five. And perhaps,” he went on, “that would be better than to have so few. You see it isn’t like an expedition into Africa, where there are plenty of native carriers to bear your provisions. We’ll have to rely more on our own resources and be extremely careful that we don’t get lost. Several million square miles of jungle is a wide area to cut into, especially when so much of it is unexplored.”

“Should think it would be great fun,” commented Joe, mentally picturing the many thrills that promised to make the trip interesting.

“It will be,” Mr. Holton returned. “But it will also have its dangers. These are mainly of human character. Why, it is said that there are tribes of Indians so uncivilized that they think nothing of——”

“Ahem!” Mr. Lewis cut in purposefully.

“What were you going to say?” Joe asked.

“Perhaps I’ll tell you some other time,” came the reply. “Right now I think I’ll have a look at my firearms. In all probability they need oiling.”

He left for the house, and the others remained for several minutes longer. Then Mr. Lewis departed also, leaving the youths to themselves.

“What do you suppose Dad was going to say—about the savages, I mean?” Bob asked, glancing around to make sure that the men were gone.

“Something that shouldn’t go into our young ears,” smiled Joe and then turned to the house.

As he did so he happened to glance out at the street, to see that two men were making their way up to the house. Each carried a small hand satchel. That they were strangers Joe guessed at once, although they might not be to his father and Mr. Holton.

Joe waited until the men were close and then turned to meet them.

“Naturalists by the names of Lewis and Holton,” one man said. “Can we find them here?”

“Yes,” Joe replied, wondering what was meant. “Come in the house and I’ll call them.”

The strangers did as directed, and Joe went around to find his father and Mr. Holton.

Bob took a chair on the porch.

Joe found the men cleaning their rifles. Neither could explain who the strangers were.

“Perhaps they’re from the museum,” said Bob’s father, as he and Mr. Lewis left for the living room of the Lewis home.

During the discussion Bob and Joe remained on the porch, not wishing to intrude on the naturalists’ private affairs. They were not there long, however, till Mr. Holton called them in with the others.

“Boys, this is Mr. Weslowe, and this, Mr. Duncan, both of the Neuman Film Corporation. The young man on my left is Joe Lewis; on my right, Bob Holton, my son.”

After a few casual remarks, Mr. Holton proceeded to tell why the representatives from the film corporation were there.

“You see, they learned of our proposed expedition into the wilds of Brazil,” he explained, “and they have come to make a business proposition. Suppose one of you continues,” he ended, looking at the men, “for if these young men are to be a part of the expedition they should know about this.”

“As you know, we are with the Neuman Film Corporation,” Mr. Weslowe explained. “Now this house is always on the lookout for an opportunity to take motion pictures of little-known places, and here is certainly an opportunity. Unexplored Brazil! Ah! What a chance!

“The minute Neuman learned of this expedition they lost no time in sending us out here to make an offer—one that we sincerely trust you will take up.”

He stopped to open his satchel and get out a folded paper. Then he continued:

“We want you to take motion pictures of Brazil for our company. Will you do it?”

For a few seconds no one answered. Then Mr. Lewis leaned forward.

“Won’t it be difficult?” he asked.

“On the contrary,” Mr. Duncan returned. “Very simple. Hardly anything to it. We’ll give you complete instructions and will not hold you strictly responsible for any lost film. In fact it nearly always happens that at least several score feet of film are lost on such an expedition, where wet and damp have so much to do with the success of the pictures taken.”

“Of course,” said Mr. Weslowe, “we realize that yours will be an expedition for the good of science, not to take moving pictures. It is for this reason that we will willingly place the responsibility, which isn’t very much, in the hands of these young men here—your sons.

“Now this will not mean,” he assured them, “that they must put in all their time for this cause. We only wish several scenes along the journey. For instance, you might start by taking a movie of ParÁ, or whatever other city you first reach. Then several hundred feet may be used along the mainstream of the Amazon, showing the gradual progress of the expedition. When you turn onto a less-known river, that’s when we want the real show to start. The country you’ll pass through will be wilder, and the pictures will be more interesting. But once again let me assure you that the apparatus we’ll furnish will be of the simplest design, and you need not worry about not meeting with success as far as that goes. And we’ll pay you well for your trouble. Here’s the contract. Read it over. See what you think of it.”

He passed the paper to Mr. Holton, who shared the reading with Bob, Joe, and Mr. Lewis.