It has
a high melting point.
8,000 degrees
centigrade.
It looks like igneous rock,
but infinitely denser.
This whole planet must be
made up of this substance
covered over by topsoil.
Mr. Sulu, it might explain
this place a little better
if we knew
what the substance is.
It was D'Amato's field,
but see what you can find.
Yes, sir.
Well, I guess
a tomb of rocks
is the best we can
provide for D'Amato.
It might be the most suitable
memorial at that.
[Machine Whirring]
I wonder
what killed him.
I don't know...
but something or...
someone...
did.
We're holding
warp 8.4, sir.
If we can maintain it,
our estimated time of arrival
is 11 and 1/2
solar hours.
11.337 hours,
Lieutenant.
I wish you would be
more precise.
Scott to Bridge.
Scott to Bridge.
- [Beep]
- Spock here.
Mr. Spock, the ship
feels wrong.
"Feels," Mr. Scott?
I know it doesn't
make sense.
Instrumentation reads correct,
but the feel is wrong!
It's something
I can't put into words.
That is obvious,
Mr. Scott.
Avoid emotionalism and simply
keep your instruments correct.
Spock out.
It looks
so lonely there.
It would be worse
if he had company.
Doctor, how can
you joke about it?
I'm not joking.
Until we know what killed him,
none of us are safe.
We've got to
figure this out
and devise
a defense against it.
Is it possible
the rocks have life?
You remember on Janus Six,
the silicon creatures--
But our instruments
recorded that.
They registered
as life-forms.
Unless we're dealing
with beings--
intelligent beings--
who can shield themselves.
Intelligent enough to have
destroyed the Enterprise?
That's the problem, Sulu.
We have only questions.
No answers.
Watkins, check
the bypass valve
on the matter/antimatter
reaction chamber.
Make sure it's not
overheating.
But, Mr. Scott,
the board shows correct.
I didn't ask you
to check the board, lad.
Yes, sir.
Who are you?
My name
is not important.
Yours is Watkins,
John B.,
Engineer Grade 4.
You know all about me.
I've never seen you before.
Show me this unit.
I wish to learn.
This is the matter/antimatter
integrator control.
- That's the cut off switch.
- Not correct.
That is the emergency
overload bypass,
which engages
almost instantaneously.
A wise precaution,
considering it takes the antimatter
longer to explode
once the magnetic
flow fails.
I am for you,
Mr. Watkins.
Mr. Scott,
there's a strange woman
who knows the entire plan
of the Enterprise.
Aah!
Oh, ya poor lad.
Scott to Bridge.
Scott to Bridge.
Spock here.
My assistant,
Watkins, is dead.
Do you know what
he died of, Mr. Scott?
I didn't see it happen,
but his last words...
were a warning cry
about some strange woman.
Security alert,
all decks.
Female intruder.
Extremely dangerous.
- [Alarm Blaring]
- Security alert. All decks.
- [Machine Whirring]
- Conclusions.
The basic substance
of this planet
is an alloy
of diburnium-osmium.
It couldn't have
evolved naturally.
Captain, it doesn't
make sense.
Nothing about
this planet makes sense.
Except for a momentary fluctuation
on your instruments,
this planet has
no magnetic field.
The apparent age
of these rocks
is only a few
thousand years.
No known process could
evolve the plant life here
in that short
space of time.
Are you suggesting this might be
an artificial planet?
But where are
the people who made it?
Why can't we see them?
The planet
might be hollow.
They might be shielding themselves
from our sensor probes.
It's dark.
Let's get some rest.
Tomorrow we'll have to
find some food and water
or it's going to be
a very unpleasant stay.
- While it lasts.
- I'll take first watch, sir.
All right.
Take D'Amato's tricorder.
Set it for automatic distress.
You never can tell.
Aye, sir.
[Beeping]
Spock to Sick Bay.
Have you completed
the autopsy on Watkins, Doctor?
Yes, we have,
Mr. Spock.
Was the cause
of his death
the same as that of
the