“Hellishomar,” Lioren said, “if my theory is correct, your life may be at risk, and the cerebral damage will certainly render you incapable of future coherent thought. Please, your answer is needed quickly.”
“The Cutters inside my skull are also at risk,” Hellishomar said. “Tell them.”
Without taking time to reply Lioren switched to the public channel and began to speak.
Although he could not be absolutely certain because of the small amount of information that the patient had been able to give him, Lioren said that he felt sure the original cause of the black intercranial growth was due to infestation by a species of parasitic vegetable vermin known to the Groalterri as a skin- sticker, which was considered to be a periodic nuisance rather than a threat to life. Nothing was known about the life cycle or reproduction mechanism of the skinsticker because they could be easily removed, brushed away with the manipulatory tentacles or by rubbing the affected area of tegument against a tree, and a life-form with the enormous physical mass and limited dexterity of the Groalterri had neither the desire nor the ability to investigate the habits of a near-microscopic form of plant life.
Skinstickers were black, spherical, and covered with a vegetable adhesive which enabled them to attach themselves to the host’s body and extend their single feeder root while they were still too small to be seen. They required only an organic food source and the presence of light and air to grow very quickly to the size when they became a nuisance and were removed. They could be destroyed by crushing between hard surfaces or by burning, and after removal the root, which had a high liquid content, withered quickly and fell out of the wound it had made.
Lioren went on, “My theory is that this case was the result of infestation by a single skinsticker which gained entry via a small abrasion which the patient no longer remembers or through the puncture wound left by the root of an earlier and unsuccessful skinsticker, and was carried through the circulatory system until it lodged in the cranium. Once there it had a virtually limitless food supply but not, apart from the tiny amount of oxygen it was able to absorb from the local blood supply, the light and air its metabolism required for optimum growth. The growth rate was inhibited but it has had a great many years, a young Groalterri’s very long lifetime, in which to grow to its present size.”
Except for the slow and near-silent beating of Prilicla’s wings, the ward might have been a still picture as Lioren finished speaking. It was Conway who reacted first.
“An ingenious theory, Lioren,” the Diagnostician said, “and while obtaining this information and discussing it between you, you have succeeded in pacifying our patient. That was well done. But whether or not your theory is correct, and I believe that it is, our procedure must continue as originally planned.”
Imperceptibly Conway’s manner changed from one of person-to-person conversation to that of lecturer-student instruction as it went on. “This foreign tissue, tentatively identified as a massively overgrown Groalter skinsticker, will be excised in very small pieces whose size will be dictated by the maximum orifice setting of our suction unit. Many hours of patient, careful work will be required to accomplish this, particularly in the later stages if there are adhesions to healthy brain tissue, and rest periods or relays of surgeons may be necessary. However, since the patient has shown no impairment or deterioration in mentation since its arrival here, and the growth has been present for a very long time, its removal may be considered necessary but nonurgent. We will be able to take all the time we need to insure that—”
“No,” Lioren said harshly.
“No?” Conway sounded too surprised to be angry, but Lioren knew that the anger would not be long in coming. “Why not, dammit?”
“With respect,” Lioren said, “the screen shows that your original incision is widening and extending in length. Let me remind you that the skinsticker grows rapidly in the presence of light and air and, after a great many years in the airless dark, light and air are again present.”
For a few moments Conway directed angry and self-abusive words at itself, then suddenly the main screen turned black as it switched off its helmet lighting and said, “This will slow the rate of growth a little. I need time to think …”
“You need more surgical assistance,” Thoranastor said. “I will—”
“No!” Seldal broke in. “Another set of enormous, awkward feet in here is what we don’t need! There isn’t enough space as it is to—”
“My feet aren’t that big—” Conway began.
“Not yours,” said Seldal. “I’m sorry, for a moment I was thinking of—”
“Doctors!” Thornnastor said, speaking suddenly with the voice and authority of the hospital’s senior Diagnostician. “This is not the time for arguments about the relative sizes of your ambulatory appendages. Please desist. I was about to say that the Nidian Senior, Lesk-Murog, is available and anxious to assist. Its surgical experience is as large as its feet are small. Conway, what are your instructions?”
The main screen brightened again as Conway switched on its helmet light. “We need a much wider suction unit, a flexible pipe of six inches’ diameter or as large as Lesk-Murog can han- die, linked to one of the air circulation pumps, so that large pieces of the growth can be excised and withdrawn quickly. We cannot work without light, but we should be able to reduce the air that has leaked from the edges of our breathing masks by withdrawing it with the operative debris and replacing it with an inert gas pumped through the existing suction line. The inert should inhibit the skinsticker’s rate of growth as effectively as a complete absence of air, but that is a hope rather than an expectation.”
“I understand, Doctor,” Thornnastor said. “Maintenance technicians, you know what is required. Lesk-Murog, prepare yourself. Quickly, everyone.”
A subjective eternity passed before the equipment was set up and the diminutive Lesk-Murog, looking like a plastic-encased, long-tailed rodent with one end of the new suction pipeline attached to its backpack, disappeared headfirst into the entry wound. Conway and Seldal had already cut through the skin-sticker’s outer membrane and were excising small pieces and feeding them into the original suction unit, although it was obvious that the black growth was increasing in size in spite of their efforts because the incision continued to widen and tear in both directions. But with the Nidian Senior’s arrival the situation changed at once.
“This is much better,” said Conway. “We are beginning to make progress now and are excising deeply into the growth. As soon as we have hollowed it out sufficiently, Seldal and Lesk-Murog will go inside and pass the excised material out to me for disposal. Don’t cut such large pieces, doctors, please. If this suction unit blocks we’ll be in real trouble. And watch where you’re swinging that blade, Lesk-Murog, I have no wish to become an amputee. How is the patient?”
“It is radiating anxiety, friend Conway,” Prilicla said, “with secondary but still strong feelings of excitement. Neither are at levels to cause distress.”
Since a further reply was unnecessary, Hellishomar and Lioren did not speak.
The main screen showed glimpses of rapidly moving Earth-human and Nidian hands and a furiously pecking Nallajim beak plying instruments that glittered brightly against the light-absorbent blackness of the growth. While describing the procedure Conway broke off to say that they were feeling more like miners digging for fossil fuel than surgeons engaged on a brain operation. The Diagnostician’s words were complaining but its voice sounded pleased because the environment of inert gas was seriously inhibiting further growth and the work was going well.
“The cavity has been enlarged sufficiently so that all three of us are now able to work inside and attack the growth independently,” Conway said. “Doctors Seldal and Lesk-Murog are able to stand upright while I am forced to kneel. It is becoming very warm in here. We would be obliged if the inert gas you are pumping was reduced in temperature so as to avoid the risk of heat prostration. The inner surface of the growth’s enclosing membrane has been exposed over several large areas and it is beginning to sag under the weight of the surrounding brain structure. Please increase the internal gas pressure immediately to keep it from collapsing all over us. How is the patient?”