<h2 id="c5">CHAPTER V <br/><span class="small">MYSTERY IN THE FOG</span></h2>
<p>While Sandy watched the amphibian and
Dick stared at the rapidly approaching sea
plane, Larry gazed at the swift hydroplane and
noted the feverish attempt on the yacht to get
its tender going as it struck the surging water.</p>
<p>Swiftly he snapped the binoculars to his eyes
as they receded from the yacht in the onrush
of their zoom.</p>
<p>A woman in dark clothes had rushed behind
the after cabin.</p>
<p>She must have tossed the life preserver from
the stern.</p>
<p>But there was a woman on the bridge with the
white uniformed captain and a navigating officer.
She was in dark clothes! But she had been
there all the time. He suddenly recalled the
French maid Jeff had mentioned in the hotel.
That answered his puzzled wonder. He knew
who had thrown that life preserver, at any rate.
It could not be the mistress. It left only the
maid to suspect.</p>
<div class="pagenum" id="Page_43">43</div>
<p>Fast as a dart the hydroplane cut the surges.</p>
<p>“She’ll get there—they see the life preserver!”
he cried, looking past the tilting wing
as they executed a split-S to turn to head back
the quickest possible way.</p>
<p>“The amphibian can set down on the water
and she’ll pass the place—already there’s somebody
climbing out of the front cockpit onto the
wing—to grab the thing as they pass!” Sandy
muttered.</p>
<p>“That seaplane is coming fast!” mused Dick.
“What a race! It will be a wonder if there
isn’t a smash when they all come together!”</p>
<p>It took only seconds for the race to conclude.</p>
<p>With a warning cry that was drowned by
their engine noise, Larry saw that the amphibian
was in such a line of flight that it must be
crossed by the course of the hydroplane—and
from the respective speeds, as well as he could
judge, there might be either a collision or one
of the craft must alter its course.</p>
<p>“The seaplane is almost down on the water—and
coming like an arrow toward that white
preserver!” gasped Dick. “Will its wings hit
the yacht?”</p>
<p>“Can’t we do anything at all?” Sandy wondered
desperately.</p>
<div class="pagenum" id="Page_44">44</div>
<p>Evidently Jeff either caught his thought or
decided on a course through his own quick wit.</p>
<p>Opening the throttle full-on, he kicked rudder
and depressed his left wing. Around came
the airplane. Skidding out of her course from
the momentum and the sharp application of
control, she moved sharply upward and sidewise.</p>
<p>Deftly Jeff caught the skid.</p>
<p>Righted, Sandy exultantly screeched at the
maneuver.</p>
<p>Flying fast, in a steep descent, they went
across the nose of the amphibian, and in the
turmoil of their propeller wash she went almost
out of control, and before her pilot caught up
his stability the hydroplane raced across her
path in a slanting line and made for the small
round object bobbing in the trough between two
swells.</p>
<p>But that gave the seaplane an advantage.</p>
<p>Quick to take it, dipping a wing and kicking
rudder, the seaplane’s pilot swerved a little,
leveled off, and set down in a smother of foam,
and on his wing also a man climbed close to the
tip!</p>
<p>“Where’s the one who was on the amphibian
wing?” Larry wondered.</p>
<p>“In the water, spilled by our wash,” he decided.</p>
<div class="pagenum" id="Page_45">45</div>
<p>He had no time to pay attention to that situation.
The imminent culmination of the race
chained his gaze.</p>
<p>“The tender is almost there—oh!” gasped
Sandy, “the seaplane must be rammed by the
tender!”</p>
<p>But the yacht’s boat, with its motor hastily
started, and cold—lost way as the engine sputtered
and died!</p>
<p>Slackening speed, the seaplane raced along
until, with a hand clinging to a brace and his
body leaning far over the dancing waves, its
passenger on the wing scooped up the life preserver.</p>
<p>Almost immediately the seaplane began to get
off the water.</p>
<p>The tender, its engine missing badly, turned
its attention to the man in the water, but before
it could get to him or near him Sandy, Dick
and Larry saw that he caught the tail assembly
of the amphibian and scrambling over the fuselage
as the craft picked up speed, fell flat on
his stomach just behind the pilot’s place and
clung tightly while the craft got “on the step”
and went into the air in a swift moil of foam
and a roaring of its engine.</p>
<div class="pagenum" id="Page_46">46</div>
<p>Outgeneraled, the hydroplane cut speed and
swung toward the yacht, followed by the tender.</p>
<p>The race was out of their hands.</p>
<p>“It depends on us!” panted Sandy. “Jeff—get
after that seaplane!”</p>
<p>Their pilot needed no instructions.</p>
<p>Kicking rudder and dipping a wing, almost
wetting it in the spray of a breaking comber,
he flung his airplane into a new line of flight,
reversed controls, giving opposite rudder and
aileron, got his craft on a stable keel and gave
it the gun as he snapped up the flippers to lift
her nose and climb after the retreating ’plane.</p>
<p>Far behind them in their swift chase, with
every ounce of power put into their engine and
their whole hearts urging it to better speed, the
Sky Patrol saw the amphibian swerve toward
shore and give up the try for whatever that
precious life preserver had attached to it.</p>
<p>That something had been cast overboard, tied
to the float, was obvious to Larry, Dick and
Sandy.</p>
<p>Nothing else explained its employment.</p>
<p>What a chase! Speed was in their favor,
because the seaplane, fast as it was, lacked the
power of their engine which they learned later
that Jeff had selected for that very quality.</p>
<p>Overhauling the seaplane was not the question.</p>
<div class="pagenum" id="Page_47">47</div>
<p>Their problem was to get above it, to ride it
down, force it to take the sea or to come down
in a crackup on shore if that must be—before
it could lose itself in that dull, gloomy, lowering
bank of fog ahead.</p>
<p>For that fog the seaplane was making at full
speed.</p>
<p>“Climb, Jeff!” Sandy begged, hoping their
pilot could ride down the craft ahead.</p>
<p>But Jeff held a level course. He had to, in
order to maintain the advantage of speed. He
thought he could get alongside their quarry before
the mist swallowed it, hid it, ended the
pursuit.</p>
<p>In that he was beaten by only a hundred
feet.</p>
<p>Into the murky folds of the thick mist dived
the seaplane.</p>
<p>Hardly more than two hundred feet behind,
they felt the cold, clammy fingers of the cloud
touch their shrinking faces.</p>
<p>Jeff cut the gun.</p>
<p>They strained their ears.</p>
<p>Where was the seaplane? Would it climb
above the murk, glide straight through it and
down, swerve and glide—or dive out and risk
leveling off and setting down just beneath the
bank so that its rapidly coming folds, and the
silent sea would make a safe and comfortable
concealment?</p>
<div class="pagenum" id="Page_48">48</div>
<p>Slowly, almost in a “graveyard” glide, so flat
was the descent, to hold flying speed and stay
as high as they could, their airplane moved
along. They listened.</p>
<p>Only the raucous cry of a seagull cut into
that chill silence!</p>
<p>The fog kept its secrets.</p>
<p>“This can’t last long, for us,” thought Larry.
“We’ll be down to the water before we know
it!”</p>
<p>Much the same idea made Dick peer anxiously
over the cowling.</p>
<p>“They must be listening for us, in the seaplane,”
Sandy decided. “I know there was a
pilot and the man who got the life preserver.
I wish I could have gotten a good look at either
one, but the pilot had goggles and his helmet
to hide his face and the other man had his back
turned to us. Where can they be? What are
they doing?”</p>
<p>They could not wait for the answer.</p>
<p>Through a thin cleft in the heavy mist, not
far below them the dark outlines of eel-grass,
flanking two sides of a channel in the swampy
shore line stood out, for an instant, clear and
menacing.</p>
<div class="pagenum" id="Page_49">49</div>
<p>“Jeff!” warned Sandy.</p>
<p>Dick echoed the cry. Jeff had already caught
the threat of that swamp below them. They
could not risk going a foot lower. The pilot
opened his throttle, picking up climbing speed
to the roar of his engine.</p>
<p>“We had to give in first,” Larry decided ruefully.</p>
<p>Not only had they given in. Jeff, it appeared,
had given up. In thickening mist the risks were
too great.</p>
<p>They had given up.</p>
<p>Jeff was climbing for the top of the bank,
where he could come into the clear, get some
idea of his location and return to report defeat
to the yacht whose captain probably lay-to,
waiting for news.</p>
<p>Nor did Jeff again cut the gun to listen.</p>
<p>“Oh, well,” Dick was always hopeful, “maybe
we’ll get a ‘break’ sooner or later.”</p>
<p>Up, and still climbing, the airplane continued
through the fog.</p>
<p>Low banks favored them.</p>
<p>With suddenly thinning rifts parting overhead
they shot out into the clear sunlight. Beneath,
stretching up disappointed fingers of
murk lay the bank of fog.</p>
<p>“Look—toward shore!” screamed Sandy.</p>
<div class="pagenum" id="Page_50">50</div>
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