ed 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 just what
minute we can get back to our own plane.

If you decide to try it, tell Perrin to do nothing for at
least a week. If the law started experimenting on this
equip