Dr. Tholan is researching a disease known as "Inhibition Death", unknown on Earth, and reveals his theory that a sixth parasitic non-physical intelligence exists that lives in the minds of the humans.
Dr. Tholan is researching a disease known as "Inhibition Death". This was unknown on Earth. A sixth parasitic non-physical intelligence exists that lives in the minds of the humans. This is what Dr. Tholan reveals his theory.