“We’ll try some shots on our back trip,” said the young inventor.

Professor Bumper found plenty of his own particular kind of “game” which he caught in the net, transferring the specimens to the boxes he carried.  There were beautiful butterflies, moths and strange bugs in the securing of which the scientist evinced great delight, though when one beetle nipped him firmly and painfully on his thumb his involuntary cry of pain was as real as that of any other person.

“But I didn’t let him get away,” he said in triumph when he had dropped the clawing insect into the cyanide bottle where death came painlessly.  “It is well worth a sore thumb.”

They wandered on through the jungle, taking care not to get too far from their camp, for they did not want to lose their way, nor did they want to be absent too long in case Tolpec and his native friends should return.

“Well, it’s about time we shot something, I think,” remarked Ned, when they had been out about two hours.  “Let’s try for some of these wild turkeys.  They ought to go well roasted even if it isn’t Thanksgiving.”

“I’m with you,” agreed Tom.  “Let’s see who has the best luck.  But tone down the charge in your rifle and use a smaller projectile, or you’ll have nothing but a bunch of feathers to show for your shot.  The guns are loaded for deer.”

The change was made, and once more the two young men started off, a little ahead of Professor Bumper and Mr. Damon.  Tom and Ned had not gone far, however, before they heard a strange cry from Mr. Damon.

“Tom!  Ned!” shouted the eccentric man, “Here’s a monster after me!  Come quick!”

“A tiger!” ejaculated Tom, as he began once more to change the charge in his rifle to a larger one, running back, meanwhile, in the direction of the sound of the voice.

There were really no tigers in Honduras, the jaguar being called a tiger by the natives, while the cougar is called a lion.  The presence of these animals, often dangerous to man, had been indicated around camp, and it was possible that one had been bold enough to attack Mr. Damon, not through hunger, but because of being cornered.

“Come on, Ned!” cried Tom.  “He’s in some sort of trouble!”

But when, a moment later, the young inventor burst through a fringe of bushes and saw Mr. Damon standing in a little clearing, with upraised club, Tom could not repress a laugh.

“Kill it, Tom!  Kill it!” begged the eccentric man.  “Bless my insurance policy, but it’s a terrible beast!”

And so it was, at first glance.  For it was a giant iguana, one of the most repulsive-looking of the lizards.  Not unlike an alligator in shape, with spikes on its head and tail, with a warty, squatty ridge-encrusted body, a big pouch beneath its chin, and long-toed claws, it was enough to strike terror into the heart of almost any one.  Even the smaller ones look dangerous, and this one, which was about five feet long, looked capable of attacking a man and injuring him.  As a matter of fact the iguanas are harmless, their shape and coloring being designed to protect them.