d care that they
believe it."

"If any one say it not so, you tell me!" broke Koku, shaking his huge
fist.

"No, I guess I'd better keep still," said Tom, with a laugh.

The weather was pleasant, if we except a shower or two, and as the
vessel proceeded south, tropical clothing became the order of the day,
while all who could, spent most of their time on deck under the shade
of awnings.

"Did you ever hear anything more of that fellow, Waddington?" asked Tom
of Mr. Titus one day.

"Not a thing. He seems to have dropped out of sight."

"And are your rivals, Blakeson & Grinder, making any trouble?"

"Not that I've heard of. Though just what the situation may be down in
Peru I don't know. I fancy everything isn't going just right or my
brother would not be so anxious for me to come on in such a hurry."

"Do you anticipate any real trouble?"

Mr. Titus paused a moment before answering.

"Well, yes," he said, finally, "I do!"

"What sort?" asked Tom.

"That I can't say. I'll be perfectly frank with you, Tom. You know I
told you at the time that we were in for difficulties. I didn't want
you to go into this thing blindly."

"Oh, I'm not afraid of trouble," Tom hastened to assure his friend.
"I've had more or less of it in my life, and I'm willing to meet it
again. Only I like to know what kind it is."

"Well, I can't tell you--exactly," went an the tunnel contractor.
"Those rivals of ours, Blakeson & Grinder, are unscrupulous fellows.
They feel very bitter about not getting the contract, I hear. And they
would be only too glad to have us fail in the work. That would mean
that they, as the next lowest bidders, would be given the job. And we
would have to make up the difference out of our pockets, as well as
lose all the work we have, so far, put on the tunnel."

"And you don't want that to happen!"

"I guess not, my boy! Well, it won't happen if we get there in time
with this new explosive of yours. That will do the business I'm sure."

"I hope so," murmured Tom. "Well, we'll soon see. And now I think I'll
go and write a few letters. We are going to put in at Panama, and I can
mail them there."

Tom started for his stateroom, and rapidly put his hand in the inner
pocket of his coat. He drew out a bundle of letters and papers, and, as
he looked at them, a cry of astonishment came from his lips.

"What's the matter?" asked Mr. Titus.

"Matter!" cried Tom. "Why here's a letter from Mary--from Mr. Nestor