"Unless Mr. Weatherby does," he said to himself. "I guess I'll tell him about it."

"You leave it to me," said the pilot, when Nat had related his story.

"I think we can easily prove that Sam Shaw is guilty. Don't worry.

I'll stand by you."

Nat felt better after this, and went about his duties with a lighter heart. Nevertheless, he could not help being anxious when he received a message telling him to report to Captain Marshall's cabin.

"If you need any witnesses call on me," said the purser, as the boy went aft. "I saw Sam smoking before you joined him, and I'll testify to that effect."

"Thank you," said Nat. "I may need you. He tried to play a mean trick on me."

In the cabin Nat found a.s.sembled Mr. b.u.mstead and Sam Shaw, besides the commander of the ship, who, looking very stern, sat in a big chair behind the table.

"I wonder where Mr. Weatherby is?" thought Nat. "He said he'd stand by me. I hope he comes."

"There's no need to state the reasons why we are here," began the captain. "I'm determined to get at the bottom of this smoking business, and put a stop to it. Does your nephew smoke?" he asked, turning to the mate.

"I--er--I think he used to, but he told me he had given it up, I think he has. Haven't you, Sam?"

"Yes, Uncle Joe; but when Nat offered me one a while ago, I took it before I thought of what I was doing. I forgot I had promised you I wouldn't smoke any more."

"I never gave him a cigarette!" burst out Nat.

"That will do!" exclaimed the captain. "You'll have your chance later."

He placed the box he had taken from Nat's pocket on the table in front of him.

"Did you ever see that box before?" he asked of the mate. "Did you ever see your nephew have it?"

"No, sir."

"Is that your box of cigarettes?" the captain asked Sam.

"No, sir; it belongs to Nat," which was the truth, as far as it went, since Sam had mentally made Nat a present of it.

"So it's yours, then?" turning to Nat.

"No, sir, it is not!"

"Who is telling the truth here?" asked the puzzled captain.

"I am!" declared Sam quickly.

"You are not!" cried Nat. "I never owned that box."

"I found it in your pocket," declared the commander.

"Because he put it there."

"I have already said I don't take any stock in that story. What object would he have in doing that?"

"I don't know, but he did it."

"I'm sure my nephew would not do such a thing," said the mate. "I know Nat smokes, for I have seen him smoking about the dock when we had occasion to tie up there."

"I used to," admitted our hero, "but I gave it up. If you will call Mr. Dunn," went on Nat desperately, "I think he could give some evidence."

"What kind?" asked the captain sneeringly. "Did you make up some for him?"

"No, sir, but he says he saw Sam smoking before I pa.s.sed him there on the deck, and warned him it was against the rules."

"Hum! Well, I suppose I'll have to send for him," which the captain did.

Mr. Dunn told how he had seen Sam smoking before Nat had occasion to go to that part of the deck where the mate's nephew was.

"Are you sure of this?" asked the mate sternly, before Captain Marshall had a chance to question Mr. Dunn. "Remember you are blackening a boy's character by what you say."

Now, unfortunately for Nat, it so happened that Mr. Dunn had what is termed a very "short" memory. He could recall matters distinctly for only a short time after they occurred, unless he made a note of them.

That he had not done in this case. The mate saw his advantage, as the purser hesitated, and he pursued it.

"Wasn't it _after_ you sent Nat to that part of the deck that you saw Sam smoking?" he asked. "Wasn't it _after_ that?"

Mr. Dunn tried to recollect. His faulty memory went back on him, he hesitated and stammered, he became confused, and the outcome was he had to admit that he might have seen Sam smoking after Nat had met him. The result was he did Nat's cause more harm than good.

"Well, I hope you're satisfied with your witness," remarked the captain dryly. "I don't see that you've proved anything, whereas the box of cigarettes is very damaging evidence against you."

Nat questioned Mr. Dunn, seeking to have him recall exactly what had taken place, but the purser, much as he wanted to help his a.s.sistant, failed dismally.

"I am compelled to say I believe you gave Sam the cigarette," went on Captain Marshall, "and, much as I regret it, for I think you are a hard-working lad, I shall have to discharge you. You broke a very strict rule of the ship, one on account of which we might, in case of fire, lose all our insurance. It is too flagrant to pa.s.s over."

"Then you believe him instead of me?" asked Nat faintly.

"I must say that I do."

"But I never had those cigarettes."

"The evidence is against you. What object would Sam have in putting them into your pocket? That is a question you cannot answer satisfactorily."

"I believe he wanted to injure me because I got this place that his uncle wanted for him."

"Nonsense! I have a better place in view for my nephew," said the mate. "He will take it as soon as this voyage for his health is ended."

"As for traveling for his health, I wouldn't advise him to smoke any more cigarettes," remarked the captain dryly, "no matter who gives them to him."

"I'll not," promised Sam eagerly, congratulating himself on the success of his plot.

"No, I'll see that he does not," added his uncle.