Sailors and passengers crowded around Tom, eager to shake his hand, and to hear about the gun.  Many declared that he had saved the ship.

This was hardly true, for the whale could not have kept up its attacks much longer.  Still he might have done serious damage, by causing a leak, and, while the Soudalar was a stanch craft, with many water-tight compartments, still no captain likes to be a week from land with a bad leak, especially if a storm comes up.  Then, too, there was the danger of a panic among the passengers, had the attacks been kept up, so, though Tom wanted to make light of his feat, the others would not let him.

“You’re entitled to the thanks of all on board,” declared Captain Wendon, “and I’ll see that the owners hear of what you did.  Well, I guess we can go on, now.  I’ll not stop again to see a fight between a killer and a whale.”

The steamer resumed her way at full speed, and the sailor, who had gone below, came up to report that there was only a slight leak, which need not cause any uneasiness.

Little was talked of for the next few days but the killing of the whale, and Tom had to give several exhibitions of his electric rifle, and explain its workings.  Then, too, the story of his expedition became known, and also the object of Mr. Anderson’s quest, and Tom’s offer of aid to help rescue the missionaries, so that, altogether, our hero was made much of during the remainder of the voyage.

“Well, if your gun will do that to a whale, what will it do to an elephant?” asked Mr. Durban one morning, when they were within a day’s steaming of their port.  “I’m afraid it’s almost too strong, Tom.  It will leave nothing—­not even the tusks to pick up.”

“Oh, I can regulate the power,” declared the lad.  “I used full force on the whale, just to see what it would do.  It was the first tine I’d tried it on anything alive.  I can so regulate the charge that it will kill even an elephant, and leave scarcely a mark on the beast.”

“I’d like to see it done,” remarked the old. hunter.

“I’ll show you, if we sight any sharks,” promised Tom.  He was able to keep his word for that afternoon a school of the ugly fish followed the steamer for the sake of the food scraps thrown overboard.  Tom took his position in the stern, and gave an exhibition of shooting with his electric gun that satisfied even Mr. Durban, exacting as he was.

For the lad, by using his heaviest charges, destroyed the largest sharks so that they seemed to instantly disappear in the water, and from that he toned down the current until he could kill some of the monsters so easily and quickly that they seemed to float motionless on the surface, yet there was no life left in them once the electric charge touched them.

“We’ll use the light charges when we’re killing elephants for their tusks,” said Tom, “and the heavy ones when we’re in danger from a rush of the beasts.”