"He must be up to something crooked or he wouldn't be so anxious to have us stop following him," went on the younger Racer lad.
"That's right. And I was so sure I'd find out what the mystery was!
But I didn't count on the cannon."
"No, it wouldn't have been safe to risk a shot. We might have sunk."
"But I'll not give up!" exclaimed Frank determinedly. "We've got some clues now, and we can follow them. Just notice which way they're sailing, Andy."
"What good will that do?"
"I intend to circle back in a short time, and see if I can pick them up. It's one thing for him to order us back, but we have just as much right on the ocean as he has, and he can't keep us off. If we stay far enough back they can't see us, and we can find out where they're going."
"Where do you think they're heading for?"
"Give it up, but I know one thing. It's evident that this man, whoever he is, wants to keep out of observation. That is proved by the fact that he once had this damaged motor boat in tow of another gasolene craft, and for some reason he gave it up. He may have anchored it in some out-of-the-way place, and has only just now gone for it. That's what he wanted of Jim Hedson's boat, but we spoiled his plans. Now he has another sailing craft to tow the prize in."
"I believe you're right, Frank, but where do you suppose he's taking it?"
"Give it up, but I'm going to keep on the search for him. If there's a chance of bringing back Paul's memory I'm going to do it."