wavelets running up the shore of
the great lake being borne to their ears.

"Yes, and since that's settled we'd better be making a further move
ahead," Jack was saying, in his sensible way.

Accordingly the advance was renewed, nor did they take any less
precaution because of the departure of the flying boat.

As before, Jack continued to frequently make good use of his little
flashlight, which proved its worth just as had been expected. So speedy
were the flashes that it did not seem possible for any one to notice
them unless he chanced to be on the watch for something suspicious and
Jack hardly anticipated such a thing as that.

Apparently the one who had planned the raid believed there was only one
course for them to pursue and that was to keep on as though everything
was just as they had hoped. Even though an adverse Fate chose to cheat
them them of their intended prey on this particular occasion there would
be other days to come,--and had he not promised to trap his man as well
as to procure all needful proof to secure his conviction?

They were soon drawing close to their goal--already Jack had glimpsed a
shred of light gleaming through the intervening brush which proved most
conclusively that the shack could not be wholly deserted.

"Good enough!" Perk whispered when this comforting fact had been brought
to his attention, "we'll get his goat yet, partner."

Their progress was slowed up at this point for Jack no longer believed
it good policy to make use of his flashlight. They had to partly feel
their way along, using both hands and feet to detect the presence of any
obstacle that was apt to cause them trouble.

Still, the night was long and there was no desire to make haste--if they
waited until those in the shack were apt to be sound asleep it would be
much easier to carry out their plan of campaign without any chance of
interruption.

Now they could get faint glimpses of the little cove, which the visiting
planes were wont to use as a hiding place, taxiing thither after
splashing down on the surface of the nearby lake.

Perk made a mental note of the fact that the cove was quite empty, no
hostile crate bobbing up and down on the water--possibly this induced
the dreamer to indulge in a hope that should the occasion warrant such a
thing, they might taxi their own ship around and make use of that snug
harbor safe from any ordinary gale that chanced to strike treacherous
Okeechobee.

Now they could se