Lab
Library
Journal
Shop
Sign in
to keep
Share image
1
289
Astounding Stories of Super-Science, August 1930
·
Various
250
"You
see,
it
is
your
invention,
my
dear
Professor,"
the
dwarf
went
on
in
his
taunting
voice,
"only
anteceded
by
a
thousand
years--and
rather
more
perfected,
you
must
admit."
He
walked
now
to
the
center
of
the
laboratory,
where
stood
a
huge
dial
of
white
crystal,
ranked
with
many
levers
and
switches,
all
capped
with
the
same
material.
"Behold!"
he
said,
throwing
over
one.
Instantly
there
came
again
that
peculiar
low
humming
that
had
so
puzzled
him
a
few
minutes
before--and
the
entire
room,
its
engines,
its
attendants,
Cor
himself,
leapt
into
invisibility.
Only
Kendrick
remained,
facing
the
faintly
visible
crystal
dial.
Then
he
saw
a
switch
move,
as
though
automatically.
But
no,
for
the
dwarf's
hand
was
on
it
now.
Visibility
had
returned.
The
vibration
ceased.
"That
is
the
central
control,"
said
Cor.
"Our
city
and
all
its
inhabitants
become
invisible
when
that
switch
is
thrown.
Only
the
dial
remains,
for
the
guidance
of
the
operator,
and
even
that
cannot
be
seen
at
a
distance
of
more
than
fifty
feet.
But
now
behold!"
He
raised
his
hand,
touched
a
watch-like
device
strapped
to
his
wrist--and
was
instantly
invisible.
But
the
laboratory
and
every
machine
and
person
in
it
remained
in
plain
view.
Nor
was
there
any
vibration
now.
The
next
moment,
having
touched
that
curious
little
device
again,
Cor
reappeared.
"That
is
the
local
control,"
he
said.
"Every
one
of
our
inhabitants,
except
those
under
discipline,
has
one
of
these
little
mechanisms.
It
enables
us
to
make
ourselves
invisible
at
will.
A
convenience
at
times,
you
must
admit."
Marker
Marker
Fine marker
White-out
Fine white-out
Circle
Paint
Unmarker
Hand
Scalpel
Dice
Sieve
Purify
Undo
Redo
Start over
