cially some that comes from around the head, at least so I have heard."
"Wow! Did you see that?" cried Tom, as one large porpoise leaped clear of the water, turned over several times and fell back with a loud splash. "That was the biggest leap yet."
"And there goes another," added Ned.
"Say, this ought to bring those two mysterious passengers out of their room," observed Tom to his chum in a low voice. "Nearly everyone else seems to be on deck."
"You haven't been able to catch a glimpse of them; eh Tom?"
"Not a peak. I stayed up several nights, as you know, and paced the deck, but they didn't stir out. Or. if they did, it must have been toward morning, after I turned in. I can't understand it. They must be either criminals, afraid of being seen, or they are the Fogers, and they know we're on to their game."
"It looks as if it might be one or the other, Tom. But if they are criminals we don't have to worry about 'em. They don't concern us."
"No, that's right. Split mackerel! Look at that fellow jump. He's got 'em all beat!" and Tom excitedly, pointed at the porpoises, the whole school of which was swimming but a short distance from the steamer.
