names. There 
was no response. 
"Is there another key, Perrin?" I snapped. 
"No, sir; none that I know of. The master was mighty fussy about his 
workroom."
"Can we get in through the windows?" 
"No. They're barred, if you remember rightly, and fitted with this 
frosted glass, so you can't see in, even." 
"Then get me an ax!" I commanded. "Quick!" 
"An ax?" hesitated Perrin. 
"An ax--and be quick about it!" 
Perrin mumbled a protest and hurried away. I turned to Mrs. Perrin, 
who had come up to determine the result of my shouting. 
"How long is it since Miss Hope went in there?" 
"How long, sir? I'd say about twenty minutes before you came. Maybe 
twenty-five. I wasn't paying any particular attention, sir. She just got 
the key and went in. After a few minutes I heard something buzzing in 
there, and I thought maybe Mr. Butler was showing her some new 
gadget of his, like he was always doing. Then there was a telephone 
call for him, and I couldn't make neither of them answer; that's when 
Mr. Perrin and I began to get worried." 
"I see." Perrin came hurrying up with the ax, and I motioned them aside. 
I swung the ax, and the head of the weapon crashed against the lock. 
The knob dropped to the floor with a clatter, but the door gave not at 
all. 
I brought the ax down again, and something cracked sharply. The third 
blow sent the door swinging wide. 
Cautiously, fearing I know not what, I entered the familiar room. 
Nothing, apparently, had been disturbed. There was no sign of disorder 
anywhere. The blankets on the narrow cot in the corner of the room had 
not been unfolded. 
But neither Vic nor Hope were anywhere in sight.
* * * * * 
"You and Mrs. Perrin stay there by the door," I suggested. "I don't 
know what's wrong here, but something's happened. There's no need 
for all of us entering." 
My second glance around the room was more deliberate. To my right 
were the big generators and the switchboards, gleaming with copper 
bus-bar, and intricate with their tortuous wiring. Directly before me 
was the long work-bench that ran the full length of the room, littered 
with a dozen set-ups for as many experiments. At my left was a sizable 
piece of apparatus that was strange to me; on a small enameled table 
beside it was a rather large sheet of paper, weighted down with a 
cracked Florence flask. 
In a sort of panic, I snatched up the paper. Vic had said in his note, that 
he would leave another note for me here. This was it, for in a bold 
scrawl at the top was my name. And in hardly decipherable script, 
below, was his message: 
Dear Pete: 
First of all, let me say that you've no particular call to do anything 
about this. If I'm in a jam, it's my own doing, and due to my 
bull-headedness, of which you have so often reminded me. 
Knowing your dislike for science other than that related to aeronautics, 
I'll cut this pretty short. It'll probably sound crazy to you, anyway. 
You know that there's sound above the frequencies to which the human 
ear will respond. You know there are light rays that the human eyes 
can't perceive. Some work I've been doing the last five or six months 
indicates that there's a form of life about us, all around us, which isn't 
perceptible to our senses--which doesn't mean that it doesn't exist. 
Well, I'm going to do a little exploring. I'm going to take a whirl at 
what I'll call the Infra-Median existence. What I'll find there, I don't 
know. Life of some kind, however, for my experiments prove that.
Possibly not friendly. 
All this being so, there's an off chance that I'll find myself tangled with 
something I can't anticipate. And if you are called upon to read this, 
then something has gone wrong with my plans. 
Should you wish to take a flier after me, stand in the center of the 
square outlined by the four uprights of the device beside which this 
little table stands. Be sure your weapon--I told you to bring a gat--is on 
your person. 
There's a small instrument board set on one of the posts. Turn the upper 
of the two dials until the hand of the meter beside it moves up to 2700 
exactly. Wait a moment, until you're sure you have the exact reading. 
Then turn the second dial until the two red lines coincide, and as you 
do so, mark the time. The thing is set to operate the reverse cycle at 
three-hour intervals exactly. When you come down, you'll start a new 
cycle, and it might be important for us to know at    
    
		
	
	
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