SCULLY:
The lab results determined that the spores we were exposed to have a chemical structure similar to LSD. They also contain an alkaloid which induces a state of narcosis.
SKINNER:
It's a rare day when the two of you sign off on the same report.
(MULDER looks thoughtful.)
SKINNER:
Agent Mulder?
MULDER:
I'm just thinking... I'm not exactly clear on how we escaped.
SKINNER:
What's not clear?
MULDER: (to SCULLY)
Once you recognized that we were under a chemical influence then it simply kind of... broke its spell?
SCULLY:
That's right.
MULDER:
Scully, how could we simply will ourselves out of a chemical hallucination?
SCULLY:
Well, the fact remains we did.
MULDER:
Did we?
Can you name me one drug that loses its effect once the user realizes it's in his system?
SKINNER:
I assume the effects wore off to the point that you were both able to make your escape.
MULDER:
Scully, how long were we underground? Hours? Half a day? How come our bodies don't show any effects of being burned by the digestive fluids? We were covered in hydrochloric acid. Yet look at our skin. Nothing.
(SCULLY looks at her hands.)
SKINNER:
Agent Mulder, where are you going with this?
MULDER:
Scully...
we never escaped.
We're still trapped underground.
(x-files s06e21 "Field Trip")