<h2 id="c27">CHAPTER XXVII <br/><span class="small">SANDY’S DISCOVERY</span></h2>
<p>Although he was the central figure in an unusual
situation, Sandy was more puzzled than
enlightened by its surprising development.</p>
<p>A footrace against a flying ship was novel
enough; but the maneuver of the amphibian was
still more strange. It was baffling to Sandy.</p>
<p>Sandy gave up the race very quickly.</p>
<p>Hearing the approach of an aircraft he sought
concealment under roadside trees, continuing
his steady trot. His heart sank as he identified
the amphibian making its swinging oval from
water to land and around the fairway and back.</p>
<p>“I can’t make it,” Sandy slowed. “It’s all
off!”</p>
<p>He knew that it was safe for him to leave his
shelter. The “phib” was past him in its zooming
return from the golf course.</p>
<p>“Now we’ll never know what they found, or
if they found anything in the swamp,” he told
himself dejectedly.</p>
<div class="pagenum" id="Page_221">221</div>
<p>Then his attention was fixed and his mind became
mystified.</p>
<p>“That’s their crate, all righty,” he muttered.
“But—they’re not landing on the estate. I
suppose they’ve come to see that Jeff’s ’plane
was safe. Now they’ll go on to Connecticut and
we are defeated.”</p>
<p>He came out onto the road, walking with bent
head as soon as he had caught his breath again.</p>
<p>For a moody few minutes he considered the
wisdom of rejoining his chums.</p>
<p>“No,” he decided. “When I don’t join them
they’ll come over to the estate. It might be a
good idea to go on to the landing field and see
if the amphibian dropped off anything with a
small parachute.”</p>
<p>He pursued his way without haste. While
he had been divesting himself of his coat Larry
had urged the caretaker to go on to his duties.</p>
<p>“I’ll go on!” Sandy murmured more cheerfully.
“I’ll have a clear half hour to myself.
Maybe—without anybody talking and disturbing
me—I might think out some answer to all
the queer things that have happened.”</p>
<div class="pagenum" id="Page_222">222</div>
<p>The failure of the amphibian to return to its
home field he disposed of by deciding that its
pilot meant to take something to some rendezvous
in Connecticut, the one, no doubt, the
hydroplane boat had made for.</p>
<p>The thing that came into his mind and stuck
there, offering neither explanations nor a solution
was the mystery of how that man had disappeared
out of the hangar on their first visit.</p>
<p>“I’d like to find out how the ‘ghost’ gets in
and out again,” he reflected.</p>
<p>Deep in the problem he looked up at a sound.</p>
<p>To his surprise, astonishing him so much that
he stopped in the middle of a stride, the lodgekeeper’s
gate of an estate he was passing
opened suddenly and Sandy found himself staring
at the last person in the world he expected
to meet.</p>
<p>Facing him with a grin was Jeff!</p>
<p>“Hello, buddy,” the pilot said, without any
show of dismay.</p>
<p>“Why—uh—hello, Jeff!”</p>
<p>“On your way to solve that-there spook business?”</p>
<p>“I—” Sandy made up his mind to see if he
could startle Jeff into a change of expression
and changed his stammering indecision into a
cool retort:</p>
<p>“I—met the estate caretaker in the village.
He asked me to run on ahead and tell you—and
Mr. Whiteside—” Sandy watched, “—he
could not find a Six-B slotted bolt anywhere!”</p>
<div class="pagenum" id="Page_223">223</div>
<p>“Oh, couldn’t he?”</p>
<p>Jeff did not change a muscle of his face.</p>
<p>“Sorry he had all the trouble. We got the
‘phib’ engine going and I took Whiteside off on
a little private matter in that.”</p>
<p>“Have you brought him back?”</p>
<p>“No. Set down in the little inlet, yonder.” He
waved toward the shoreline concealed beyond
the estate shrubbery. “It was closer to my own
crate—it’s stalled yonder in the golf course.”</p>
<p>“Oh!”</p>
<p>Yes—stalled! Sandy repressed a taunt and
pretended to accept the false statement.</p>
<p>“I hear Larry’s been getting instruction off
that-there Tom Larsen,” Jeff turned suddenly
on Sandy.</p>
<p>“Yes. Mr. Whiteside paid for it.”</p>
<p>It would do no harm, Sandy thought, to let
Jeff know that his fellow conspirator, if that
was Mr. Whiteside’s real standing, was not
playing fair. “When people who may be wicked
turn against each other, we learn a lot,” Sandy
decided.</p>
<p>He failed in his purpose.</p>
<p>“Tommy’s a good pilot,” Jeff admitted. “Well—I’ll
be on my way. See you at the next air
Derby!” Jeff grinned at his joke and walked on.</p>
<div class="pagenum" id="Page_224">224</div>
<p>So did Sandy.</p>
<p>While he hurried on, pausing only to collect
a “wienie” and roll for lunch, Larry and Dick
saw Jeff approach across the green of the fairway
and took cover.</p>
<p>“He’s inspecting that airplane—I hope we
didn’t leave any clues!” whispered Dick.</p>
<p>“He’s feeling the engine cowling—he wonders
how the motor stayed so warm,” Larry retorted
under his breath. “Now he’s looking
around—get down low, Dick—well, he’s shaking
his head. Now he’s in the cockpit. There! He
caught the spark on a compression stroke—used
his ‘booster magneto.’ There goes the engine.”</p>
<p>And, from the descent of Jeff, to give the
ground careful inspection to the moment when
he gave up his own baffling puzzle and took off,
the youthful amateur pilot reported to Dick,
from a spy-hole in the greenery.</p>
<p>“I wonder if Sandy knows Jeff has come on to
take his airplane off,” Dick mused.</p>
<p>“It’s safe to go and see. If Mr. Whiteside
is on the estate it will look as though we came
out extra early. Besides, I’m hungrier than
Little Red Riding Hood’s wolf. Come on!”
Larry led the way from the golf course as he
spoke.</p>
<div class="pagenum" id="Page_225">225</div>
<p>Sandy, long since safe at the hangar, began
to work out his puzzle.</p>
<p>“Somebody was in this hangar the day Jeff
made his pretended forced landing,” he told
himself. “We saw him. It wasn’t a mistake.
We all saw him and that proves he wasn’t just
a trick of light in the hangar.”</p>
<p>More than that, he deduced, the man had vanished
and yet, after he was gone, there had come
that unexpected descent of the rolling door
which had first made them think themselves
trapped. Sandy argued, and with good common
sense, that a ghost, in broad sunny daylight,
was a silly way to account for the man. He also
felt that it was equally unjust to credit the drop
of the door to gravity. Friction drums are not
designed to allow the ropes on them to slip, especially
if there is no jolt or jar to shake them.</p>
<p>“But the switches that control the motor for
the drum are right out on the wall in plain
sight,” he told himself, moving over toward
them, since the rolling door was left wide open
when the amphibian was taken out. “Yes, here
they all are—this one up for lifting the door,
and down to drop it. And that switch was in
the neutral—‘off’—position when we were first
here—and it’s in neutral now.”</p>
<div class="pagenum" id="Page_226">226</div>
<p>He tapped the metal with the rubber end of
his fountain pan and then shook its vulcanite
grip-handle, to see if jarring it caused any possible
particles of wire or of metal to make a
contact.</p>
<p>“That’s not the way it’s done,” he decided.</p>
<p>He stood before the small switch panel, considering
the problem.</p>
<p>His eyes, in that position, were almost on a
level with the pole-pieces to which wires were
joined to enable the switch metal, when thrust
between the flat pole contacts, to make contact
and complete the electrical circuit.</p>
<p>“Hm-m-m-m!” Sandy emitted a long, reflective
exclamation.</p>
<p>“I never saw double wires—and twisted
around each other, at that,” he remarked under
his breath. “No—I’m not quite right. The two
wires aren’t twisted around each other. One
wire is twined around the other.”</p>
<p>He traced the wires down into the metal,
asbestos-lined sheathing cable, and was still not
enlightened about the discovery. It was not necessary
to have two wires. One was heavy enough
for the hundred-and-ten volt current that came
in from the mains.</p>
<p>“That wire, being twined around the other,
makes me think it was added—after the first
one was put in,” he declared.</p>
<div class="pagenum" id="Page_227">227</div>
<p>“I wish I could trace it,” he added.</p>
<p>He tried.</p>
<p>Sandy, when he turned around, ten minutes
later, knew all that the inside of the haunted
hangar could reveal.</p>
<p>Another five minutes, concentrated close to
a certain spot on the outside of the building,
gave him his final clue.</p>
<p>But instead of waiting to tell his chums his
great discovery, instead of keeping vigil, Sandy
went away from there as fast as he could walk.</p>
<p>All afternoon he was as busy as a boy trying
to keep ten tops spinning!</p>
<div class="pagenum" id="Page_228">228</div>
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