<h2 id="c24">CHAPTER XXIV <br/><span class="small">A PUZZLING DEVELOPMENT</span></h2>
<p>“Hooray!” Dick slapped Sandy’s shoulder.
“The ‘man higher up’ has come down to earth!
Here comes Larry!”</p>
<p>“You’re a sight for sore eyes!” Sandy exclaimed
as the youthful amateur pilot joined his
friends.</p>
<p>“I haven’t seen much of you, I know.” Larry
sat down on the swing by Dick on the latter’s
veranda. “Daytimes I’ve been studying rigging
and checking up on an airplane, because Tommy
thinks a pilot ought to know everything there
is to know about his ship because he may have
to do things himself if he gets hold of a careless
rigger.”</p>
<p>“If the pilot didn’t know the right way he
couldn’t say if his helper was doing things the
wrong way,” agreed Sandy.</p>
<p>“But that hasn’t kept you away evenings,”
objected Dick.</p>
<div class="pagenum" id="Page_197">197</div>
<p>“Tommy has been very good to me, giving
me his time, in his room, so he could tell me all
the ‘fine points’ he has picked up about flying.”</p>
<p>“Sky Patrol’s report received, considered and
accepted,” Dick stated.</p>
<p>“Now for yours,” Larry smiled. “What has
the Ground Crew done?”</p>
<p>“Watched, evenings, turn and turn about, till
midnight,” Dick told him. “Mr. Whiteside took
the day shift and came on to relieve us every
midnight.”</p>
<p>“What progress have you made?”</p>
<p>“None at all!”</p>
<p>Sandy, responding to Larry, added:</p>
<p>“But you wouldn’t expect anything to happen
if you’d seen all the reporters who have
been ‘hanging around’ the old estate. Why, one
has slept in that hangar a couple of nights.”</p>
<p>“No ghost with any self-respect would make a
show of himself for newspaper publicity!” Dick
chuckled.</p>
<p>“Almost all we needed to do was to watch
the reporters,” Sandy said. “But they have
given up, I guess. There was only one out
last night, and he told me he thought the paper
that ran that ‘box’ had played a trick on the
others and on the readers.”</p>
<p>“That’s good,” Larry remarked. “Now the
coast will be clear, the ghost can walk, and I
will be with my trusty comrades to trip him up.”</p>
<div class="pagenum" id="Page_198">198</div>
<p>“It seems queer to me,” Dick spoke. “I’ve
thought a lot about it. The fellow who played
ghost must be searching for something. What
can it be?”</p>
<p>“The emeralds?”</p>
<p>“But he was there before they were lost,
Dick,” Larry objected.</p>
<p>“That’s so, Larry.”</p>
<p>“Here’s something that just came to me.”
Sandy bent forward in the lounging chair.
“Nothing has happened at night, for ten days.
But all that time, Mr. Whiteside has been on
the ‘day watch,’ as he calls it.”</p>
<p>“Golly-gracious!” Larry exclaimed. “Do you
think?——”</p>
<p>“When Jeff flew us there, the first time, there
seemed to be somebody in that hangar when we
started in,” Dick added to Sandy’s idea.</p>
<p>“You’re right,” Sandy admitted. “By the
way, Jeff is back at Bennett Field, taking up
passengers for hire again.”</p>
<p>“I’m not worrying about Jeff.” Larry was
caught by the suspicious action of their “detective”
in taking the day watch while nothing occurred
at night.</p>
<p>“What do you think of going out there to the
hangar now?” he asked.</p>
<p>They thought very well of the idea.</p>
<div class="pagenum" id="Page_199">199</div>
<p>It was close to noon when the ’bus deposited
them at the town from which they had to walk
to the estate.</p>
<p>Strolling down the quiet street toward the
main highway, Sandy’s alert eyes, always roving,
caught sight of the estate caretaker. They
hailed him and ran to the corner where he had
turned to wave to them.</p>
<p>He greeted them sourly. Plainly the caretaker
was out of sorts.</p>
<p>“Humph!” he grunted. “More dern amachoor
detectives!”</p>
<p>“What makes you say that?” Sandy’s grin of
salutation changed to a look of hurt surprise.</p>
<p>“Why wouldn’t I say it? Ain’t it enough I
had reporters an’ all rampagin’ through the
place without you three got to come, on top o’
that Whiteside feller and Jeff——”</p>
<p>“Mr. Whiteside—and Jeff?” repeated Larry.</p>
<p>“Yep! Nights it’s been bad enough—now it’s
daytimes! Ghosts! Reporters! Snoopers! And
now you fellers in the daytime!”</p>
<p>“What about Mr. Whiteside—and Jeff?” Dick
wanted to get to the bottom of a startling situation.</p>
<p>“Well, if you must know—that Whiteside
feller was there, as per usual, and along come
Jeff, limpin’——”</p>
<div class="pagenum" id="Page_200">200</div>
<p>“Limping? Was he hurt?”</p>
<p>“Had his foot tied up, Master Larry. Said he
was flyin’ and his power quit and he had to
come down in a bad spot and a lot more.”</p>
<p>Once started on his troubles and their cause,
the caretaker needed no more prompting. Jeff,
he went on, had met Mr. Whiteside and said that
if he wanted to fly he’d have to go in that other
thing that they put in the water——”</p>
<p>“The hydroplane boat?” Sandy broke in to
ask.</p>
<p>“No, the ampibbian——”</p>
<p>“The amphibian!”</p>
<p>The man nodded as they walked down toward
the highway. After he helped the others to get
the water-and-land ’plane onto the field, he
grumbled, and had turned the propeller blades
till his arms ached, the superstitious pilot, saying
he had stumbled and fallen that morning
and knew something would go wrong, had decided
that they had no time to repair or find
the trouble in the amphibian.</p>
<p>They must get going, he reported that Mr.
Whiteside had declared, and Jeff had argued
that if he had a six-B slotted bolt, he could fix
his motor.</p>
<div class="pagenum" id="Page_201">201</div>
<p>“I never did hear of a six-B slotted bolt—or
any slotted bolt,” declared Dick, while Sandy
and Larry assented.</p>
<p>“Neither did the hardware man here in town
after that Whiteside feller gave me five dollars
to walk in the four miles and—back!”</p>
<p>Dick consulted his comrades with his eyes.</p>
<p>“That sounds to me like sending a new machine
shop hand to the foreman for a left-handed
monkey wrench,” he chuckled. “They’ve
played a joke——”</p>
<p>“That doesn’t fit in,” argued Larry. “A bandaged
foot, a limping pilot, an engine that
wouldn’t start—and sending this gentleman on
an errand that would take him away for a good
while——”</p>
<p>“Where did Jeff say he set down?”</p>
<p>The caretaker turned and scowled at Sandy.</p>
<p>“He never set down nowhere. He leaned
against the hangar!”</p>
<p>“I mean—where is his own airplane?”</p>
<p>“He never told me.”</p>
<p>All three comrades wished heartily that Jeff
had revealed the information. Since he had not,
each cudgeled his brains for some likely place
within walking distance of the estate.</p>
<p>“That ‘six-B slotted bolt’ makes me think his
engine hasn’t anything wrong with it at all,”
Larry stated, finally. “Furthermore, I think
he put down his crate in some handy—good—spot!”</p>
<div class="pagenum" id="Page_202">202</div>
<p>“A crackerjack pilot like Jeff could get in on
a pretty small field,” Larry argued. “One place
I can think of that isn’t a bad landing spot is
the fairway of the ninth hole on that golf course
yonder.” He indicated the grounds of a golf
club. “It’s away from everything, and he might
fly over the course, see that no foursome or twosome
was likely to get there for some time—”
Dick nodded, agreeing; but Sandy shook his
head.</p>
<p>“What bothers me,” he stated, “is that if his
engine is all right, Mr. Whiteside would have
met him and gone in Jeff’s ship.”</p>
<p>“Unless—unless they wanted to make a water
landing!”</p>
<p>“Golly-gracious, Dick! I think you’ve found
the reason——”</p>
<p>“But, Larry—why wouldn’t they use the
hydroplane boat?” Sandy was not convinced.</p>
<p>“I think the amphibian would be quicker—and
maybe they don’t want to land but need
the pontoons in case of——”</p>
<p>Dick, laying a hand on Larry’s arm, stopped
him.</p>
<div class="pagenum" id="Page_203">203</div>
<p>“I have guessed the answer,” he cried. “They
wanted to get rid of this gentleman,” he nodded
toward the caretaker. “Then they could search
that hangar——”</p>
<p>But they, themselves, had done that thoroughly!
Larry made the objection but Dick
waved a hand to dismiss it.</p>
<p>“The ghost hadn’t found anything. We
hadn’t!” he argued. “Maybe they’ve decided
there is something—and if it isn’t there when
they make a good search, they think they know
where else to look—and it’s either in the water—or
over the water—or——”</p>
<p>“In the swamp where the seaplane crashed!”
shouted Sandy, complimenting Dick with a
sound smack on his back.</p>
<p>“Then let’s look on that fairway and see if
the airplane is there, and if the engine runs.”</p>
<p>The airplane was there. The engine operated
readily.</p>
<p>While they discussed these proofs of Dick’s
quick wit, the sound of an airplane engine
turned all eyes skyward.</p>
<p>“It’s the ‘phib’!” Sandy exclaimed.</p>
<p>“Come on—get in!” Larry urged. “I can fly
this crate—and we’ll see what they’re going to
do!”</p>
<div class="pagenum" id="Page_204">204</div>
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