<h2>CHAPTER XIII</h2>
<p>With a quick spring, Dorothy was first on a
chair, and then on the table beside her brother.
She bent to inspect the crystal hemisphere, looked
at it from various points, and then both of them
began examining the construction of the lamp
shade.</p>
<p>“It’s hermetically sealed above?” said Tom
finally, a note of inquiry in his voice.</p>
<p>“It seems to be,” answered Dorothy briefly.
“Tom, jump down, will you, and let Mr. Hamerly
come up here. Jim, will you and Mr. Swenton see
if you can find another lamp shade like this in the
storeroom.”</p>
<p>We returned from our errand, bearing a duplicate
of the shade which we had found on a shelf.
Dorothy, who by this time had come down from
the table where Hamerly and Tom still stood, took
the shade from my hands and held it to the light.</p>
<p>“This shade is nothing but ordinary glass.
There’s nothing unusual about it,” she exclaimed.
“The effect of the shade up there must be due to
a gas inside.”</p>
<p>As Tom and Hamerly leaped from the table to<span class="pagenum"><SPAN name="Page_177">[177]</SPAN></span>
inspect the shade, I seized the opportunity to
ascend, and mounting, gazed through the hemispherical
glass. A strange world met my eyes.
Everything seen through the glass was bent around
at extraordinary angles. Tom’s legs, seen below
the shade, were perfectly natural and upright, but
his torso, seen through the shade, was bent like
the body of a Japanese contortionist engaged in
extremest posturing. The straight line of the door
casing beyond was broken short off where the line
of the shade intersected it, and the top of the
casing appeared in a wholly different place. As I
gazed, I struggled to think what common everyday
thing acted in much the same way. Eureka, I
had it.</p>
<p>“Why, whatever is inside this globe bends
everything seen through it, something as a spoon
is bent in a glass of water or an oar in a pond,” I
cried.</p>
<p>Hamerly looked up. “That’s about right,
Orrington. Or better yet, you could say it bends
the things you see, as the hot gases rising from a
chimney bend everything behind them into wavy
lines. Haven’t you ever watched the queer waviness
that shows in a wintry atmosphere above
chimneys, when you look over them?”</p>
<p>“Many a time,” I replied.</p>
<p>“Well, that’s just the same type of thing we have
here. When you look across a chimney, where hot<span class="pagenum"><SPAN name="Page_178">[178]</SPAN></span>
gases from a fire are coming off, you are looking
from air through lighter gases (for such hot gases
are lighter than cold air) to cold air again. That
extreme bending of light rays that we call refraction
is the reason why we hope we have a new gas.”</p>
<p>“If we can test the gas to find out what it is, it
ought to be a big lift in finding out what really
happened,” I said, as I descended from the table.</p>
<p>“That won’t be hard at all,” interrupted Dorothy.
“We’ll test it with the spectroscope in the
next room. Here comes Tom now, with the
apparatus to catch and confine the gas.”</p>
<p>With glass tubes and air pumps, with platinum
and flame, they strove for half an hour, Tom,
Hamerly, and Swenton together. Dorothy threw
in a quiet word of suggestion now and then, but the
most of the time she stood back with me. This
was a matter for experts, and left nothing for me to
do. As we waited, I asked Dorothy two questions.
“Where do you think the gas came from? Has it
been here since Heidenmuller’s death?”</p>
<p>“I think it must have been,” answered Dorothy.
“If, as I imagine, we have an unknown gas here,
it is probably one of the products left behind from
the metal destroyed by the terrific force used by the
man. When the substance that gave the force,
energy, or whatever you call it, escaped through the
broken valve of the cigarette case, this gas was
formed from the changed metal and, as it was<span class="pagenum"><SPAN name="Page_179">[179]</SPAN></span>
lighter than the air, some of it rose and filled the
shade, the rest floated upward and out through
some crevice. When the man destroyed the
Alaska or any of the other vessels, the same thing
probably occurred—the metal of the ship changed
to a gas which floated up into the air with extreme
rapidity. The gas must be to air as oil is to water,
that is, it can’t diffuse or mix with it, any more
than oil can mix with water. Otherwise it wouldn’t
have stayed all these months in the lamp shade.”</p>
<p>Just then Tom came towards us with a glass
tube, a foot long and an inch or two wide, in his
hand. In each end was sealed a bit of silvery
metal.</p>
<p>“Platinum,” I said, as I looked at them.</p>
<p>“Yes,” said Tom laughing, “Mrs. Rosnosky
taught you to know platinum when you see it.
Just look through this.”</p>
<p>He held the tube before us, and the same magic
bending of the lines showed as we gazed. The
tube was filled with the gas that I had seen in the
shade above.</p>
<p>“That’s as pretty a piece of work as I ever did,”
said Tom approvingly. “Transferred it without
allowing practically a particle of air to get in.
Now we’re ready to try the current on it, and then
the spectroscope.”</p>
<p>Rembrandt might well have painted the picture
that I beheld, to hang beside the “Lesson in<span class="pagenum"><SPAN name="Page_180">[180]</SPAN></span>
Anatomy” that dominates the old Museum at the
Hague. A striking group of four bent above the
shining tubes and polished mountings of the spectroscope.
Tom, eager, with his fine lean face
showing the highest power of receptivity to new
ideas, mouth mobile but firm, with an ever present
tendency towards an upward lift of the corners;
Hamerly, careful thoughtful scholar, in our college
slang “a little on the grind type,” extremely bald,
his glasses perched judicially on his rather prominent
nose, his face showing the lines of deep and
strong thought; Swenton, faithful and efficient
follower, a man who would always be led, would
never spring by any conceivable chance from the
narrow channels where his lot had chained him;
Dorothy, Maxima et Optima, now commanding
by reason of her swift flying intellect, now yielding
to her dreams as she had an hour or two ago in the
hansom cab, and, when yielding, most womanly,
most thoroughly feminine of her sex. Faceted like
a diamond, she shone upon the world through every
facet, and every line, plane and angle showed a
new beauty, a new grace.</p>
<p>The four stood eagerly intent upon the little tube
before them, as they connected it with a huge coil
which stood near. That done, everything was
ready to throw the switch which would send the
electric current leaping from one platinum pole to
another, penetrating the gas in the tube, heating it,<span class="pagenum"><SPAN name="Page_181">[181]</SPAN></span>
changing its action, forcing it to submit to the
current’s tremendous force.</p>
<p>“All ready?” asked Tom, as he straightened
up from the last adjustment. “Swenton, you turn
off the lights and I’ll put on the current here.”</p>
<p>As the lights went out, and we heard the sound
of the throwing of the switch, Dorothy stepped
back by me. A low buzz grew swiftly in intensity,
and then a simultaneous cry broke from us all.
Within the tube a soft blue came slowly from out
the dark, the blue of early dawn on quiet waters,
as we gazed it turned darker, more brilliant; now
it was the deep, steel blue of the biting autumn
day, now the deep, blue black of velvet tropic night.
Every change, every hue was lighted by the rarest
and most exquisite effulgence man could conceive.
No glory bound to earth it seemed, rather an unearthly
brilliancy, perhaps such radiance as led the
three kings, Gaspar, Melchior and Balthazar, to the
manger where the young child lay. It awed us all.</p>
<p>“That is beyond anything I ever saw,” said
Hamerly at length, breaking the silence. “I have
observed every known gas under the influence of
current, but never anything like this.”</p>
<p>“Nor I,” said Tom. “But there may be no
time to spare. Let’s try it with the spectroscope.”</p>
<p>As Tom and Dorothy bent over the instrument,
I asked Hamerly, “What do you expect to find
from the spectroscope? What does it do?”</p>
<p><span class="pagenum"><SPAN name="Page_182">[182]</SPAN></span></p>
<p>“It breaks down light,” answered Hamerly,
“by means of a prism, as a prismatic chandelier or
a prismatic glass thermometer throws the spectrum
of a sunbeam on the floor, breaking the white light
of the sun into a shifting mass of color that changes
from red, through orange and green to violet.
Every different glowing gas gives off a slightly different
light. We can tell by the spectroscope
whether the light from this gas is the same as any
we have known before, or whether it is different.
If the light waves sent out are unlike any recognized
before, we can be sure we have a new gas.”</p>
<p>Tom was turning a screw, with his eye glued to
a small telescope. “Change that tube a bit to the
right, Hamerly,” he said, and it was changed.
“Now a bit higher. No, not so high, a bit lower
now. There you are.”</p>
<p>He gazed long and intently, then rose, motioning
Hamerly in silence to take his place. Dorothy
followed Hamerly, and Swenton followed her. I
ended, but I could distinguish nothing save some
lines crossing a scale placed within the tube. As I
rose from the stool, Tom reached up to throw on
the lights. As he faced around, Hamerly met him
with outstretched hand.</p>
<p>“It is only given to a handful of scientists in a
century,” he said, “to find a new element, to discover
one of those units from which the world is
made. I believe you have done it this afternoon.”</p>
<p><span class="pagenum"><SPAN name="Page_183">[183]</SPAN></span></p>
<p>“It is a new, elementary gas,” said Dorothy.
“You found it, Tom, when you climbed that
table.”</p>
<p>“Much good it will do me, so far as that goes,”
remarked Tom. “So far as we know, all there is
of it in the world is in this tube. I don’t know how
to produce any more, and I can’t publish anything
about it, for it would interfere with our search for
the man.”</p>
<p>“You have no right to say that it’s no use,” said
Dorothy. “Again and again as we have gone on,
the slightest unexpected things have come to mean
the most. I believe this tube of unknown gas may
be a most important link in the chain.”</p>
<p>“All right,” said Tom. “Just as you say. You
can be sure I wasn’t going to throw it into the
waste basket.”</p>
<p>While Swenton cleared away, the rest of us
went into the wooden room. Hamerly passed
across and opened one of the wooden shutters.
“The fog is lifting,” he said.</p>
<p>We looked out and saw that the other side of
the street was gradually becoming visible. Dorothy
seated herself by the window, and we joined her.</p>
<p>“I don’t know that there could be a better time,”
I began, “than right here and now, to find out just
where we are. For my part, I want to understand
the relation between the new gas and all that has
gone before. If we bring all our information together,<span class="pagenum"><SPAN name="Page_184">[184]</SPAN></span>
won’t there be a better chance to get a line
on our next move?”</p>
<p>“We have two things in our hands,” said Tom
thoughtfully. “This tube of gas here and the
cigarette case. We know that the ships really
disappeared, because Jim has been to the bottom
of Portsmouth Harbor and seen the men that lie
there. We know by the same token that this force
kills, by a sort of paralysis, every man whom it
attacks. Oh, that reminds me,” he exclaimed,
checking himself. “Let me see that cigarette case
again, if you will, Hamerly?” The case once in
his hand, he looked it over with minute care. “Insulated
within the paraffin by caema, don’t you
think?” he asked Dorothy.</p>
<p>After a brief inspection she also nodded.
“That’s caema, all right.”</p>
<p>“Never mind caema, now, whatever it is,” I
said. “Let’s go on with the business. What else
do we know?”</p>
<p>Hamerly took up the tale. “We know to a
reasonable certainty that Dr. Heidenmuller was
the first man who found the source of this power,
and that he died when it accidentally was let loose.
We know that some of this substance, probably in
powder form like radium, was kept in the leather
cigarette case, insulated by paraffin and caema.”
He paused.</p>
<p>“We know,” went on Dorothy, “that when the<span class="pagenum"><SPAN name="Page_185">[185]</SPAN></span>
man who is trying to stop all war uses this force, a
tremendous amount of radio-active energy is generated,
enough to affect reflectoscopes half around
the world.”</p>
<p>“We know there is something which is even
more than all those things,” I broke in. “We
know there is a man who is slaughtering men by
the hundreds, in pursuit of his ideal, and that it is
our business, in more ways than one, to run him
down. How will the data we have on hand enable
us to do that?”</p>
<p>As I spoke, Dorothy was sitting looking meditatively
out of the window. The fog had lifted a
little more. Hamerly straightened in his chair.</p>
<p>“Miss Haldane,” he said, “if you will look
straight across the street from where you are sitting,
you can see the spot from which the sign fell
on the day that Dr. Heidenmuller died.”</p>
<p>Dorothy turned in her chair, and we all crowded
about her. Hamerly pointed across the road.
There, against the brick wall of an old house,
blackened by the smoke of many sooty years, two
small rectangles showed in light relief against the
surrounding darkness. The sight of those spots,
where the supports to the sign had once stood,
brought the whole horror of it home to me more
forcibly than anything else. The very smallness,
the homeliness of the thing drove it in. The
accumulated effects of the charged electroscopes,<span class="pagenum"><SPAN name="Page_186">[186]</SPAN></span>
of the wave-measuring machine, of the bodies on
the ocean’s floor, of Dr. Heidenmuller’s death,
and of the gas we had just found, rose to their very
crest in those small, light gray spots, less sullied
than the rest of the wall.</p>
<p>“And there is where the wooden sign fell down,
and its iron supports disappeared,” said Tom
reflectively. “Jove, I’d like to have seen it happen.
If anybody had seen it, though, he wouldn’t have
believed his eyes.”</p>
<p>We were still standing, peering out through the
rising mist, when Dorothy spoke out excitedly.
“That’s the next clue, there’s nothing else that
will do so well,—the hunt for disappearing iron.”</p>
<p>“What good will that do?” said Tom. “We
know where iron has disappeared, and we’ve run
everything down as far as we could. It isn’t likely
that Heidenmuller or the man went around shooting
off signs for fun.”</p>
<p>“Of course not,” answered Dorothy impatiently.
“But don’t you see the man must have had a
laboratory, or lodgings, anyway, somewhere in
London, if he got his data and his power from Dr.
Heidenmuller here. When Dr. Heidenmuller let
his discovery get away from him, it killed him, and
caused all the metal which it reached to disappear.
Now, the man hasn’t been killed by his weapon,
unless it happened very recently, but it’s perfectly
possible that he might have allowed some of his<span class="pagenum"><SPAN name="Page_187">[187]</SPAN></span>
magic substance to escape without injury to himself.
If that happened, it would destroy any metal
at hand. If we could find some place where iron
disappeared, we might get a direct clue to the
whereabouts of the man. It’s worth trying, anyway.”</p>
<p>“I’m sure it is,” I cried. “Tom, you old
doubter, speak up and admit Dorothy knows twice
as much about it as you and I put together.”</p>
<p>“I guess not,” said Tom firmly. “There may
be something in this, if we could get track of everything
that bore on disappearing iron, London
over; but,” he went on, “talk about a needle in a
hay stack. You went up against a hard enough
proposition in running down Heidenmuller’s laboratory
here, but this new deal is far worse. You
can’t advertise.”</p>
<p>“No, I don’t see how you can,” remarked
Dorothy, a trifle discouraged.</p>
<p>“Oh, this thing’s easy enough,” I broke in. “I
wish everything was as simple. Inside of two
days, I’ll have all the information that London
holds with regard to disappearing iron.”</p>
<p>“How can you get it?” cried the three in unison.</p>
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