the fallen tree we used for
a bridge, and I'm simply ashamed of myself that I didn't think
more about this stream at the time---but my head was then too
full of the lake mystery and the chap with the haunting face.
But now-----"

"Well?" demanded Tom impatiently.

"Reade, old fellow," Dick answered solemnly, turning back from
peering at one of the quiet pools in the creek, "you're a wonder
at black bass fishing, no doubt. My tastes ran to another form
of sport. Mr. Morton taught me trout fishing; he lent me his
tackle before we started, and I have it over at the camp now.
Fellows, I believe, from the looks of things, that this stream
is well stocked with trout. At all events, I mean to have a try
at it."

"To-morrow?" asked Dave.

"No, siree! This afternoon----just as soon as possible! A little
while ago we were talking about ferrying ice over to the camp.
Instead, we'll ferry the camp over here, and keep the cave just
as it is for our ice-house. Do you fellows know that brook trout
make the most delicious eating to be had when the cook knows his
business? I do, for Mr. Morton has cooked trout for me in the
woods. Besides, brook trout are growing scarce these days. If
we can make a good haul, we can get a pretty big price per pound
for them! We have ice, now, and we could carry a lot of trout
to market on our push cart, on top of enough ice to keep them.
Come on! Back to camp! We'll shift it to this side of the lake
at once. This crowd can't do better than to work out this trout
stream. I know the trout are there! I can smell 'em! Tom, I've
got an important job for you!"

CHAPTER XIX

MORE MYSTERY IN THE AIR

It was nearly dark, after an afternoon of hard work for five members
of the party, and an afternoon of wonderful sport for Dick Prescott.

A crude raft had been built. That part of the work had been easy,
and it was swiftly performed. But three trips with the small
raft had been needed to bring over the tent, the supplies, the
push cart and everything belonging to the old camp.

Now the new camp stood pitched at a short distance from the cave,
but near to the edge of the lake. The tent had been put up in
a natural clearing, behind a line of timber, so that the canvas
was not visible from the other side of the lake.

At trout fishing Dick had proved himself more than an expert.

Now that darkness was coming, Dick was bending over a low fire,
watching a frying pan in which