They were no longer swimmers in a near-solid ocean, Lioren thought, but miners boring through a tunnel that they carried with them.
“We are encountering increasing resistance and pressure from one wall of the fissure,” Conway said. “The tissues on that side appear to be both stretched and compressed. You can see there, and over there, where the blood supply has been interrupted. Some of the vessels are distended where the blood has pooled and others deflated and all but empty. This does not appear to be a naturally occurring condition, and the absence of necrosis in the area suggests that the circulation is seriously impeded but so far not completely blocked. The structural adaptation that has taken place also suggests that the condition has been present for a long time.
“Scanning is needed to find its cause and source,” Conway went on. “I will use the hand scanner briefly, at minimum penetration, now. How does the patient feel?”
“Fascinated,” Hellishomar said.
The Earth-human barked softly. “No emotional or cerebral effects are reported by the patient. I will try again with a little more penetration.”
For a few seconds Conway’s scanner image appeared on the main screen, then dissolved. The recording was projected onto an adjacent screen and frozen for study.
“The scanner shows the presence of another membrane at a depth of approximately seven inches,” the Diagnostician continued. “It is no more than half an inch thick, and has a dense, fibrous structure and a degree of convex curvature which, if continued uniformly, would enclose a spherical body of approximately ten feet in diameter. The underlying tissue structure is still unclear but shows a marked difference to that encountered so far. It may be that this is the site of the lobe responsible for the telepathic faculty. But there are other possibilities which can only be eliminated by surgical investigation and tissue analysis. Doctor Seldal will make the incision and obtain tissue samples while I control the bleeding.”
The main screen was filled with a picture of Conway’s hands, looking enormous and distorted because of the proximity of the helmet’s vision pickup, as they fitted a cutter to the Nallajim Senior’s beak. Then an index finger moved forward to outline the position and extent of the required incision.
There was a sudden blur of motion as the back of Seldal’s head and neck briefly obscured the operative field.
“You can see that the initial incision has not uncovered the membrane,” Conway went on, “but the underlying pressure has forced apart the edges of the wound to a degree that, if we don’t relieve the situation by extending the incision at once, there is a serious risk of it tearing open at each end. Seldal, would you go a little deeper and extend . . .Oh, damnV
It was as Conway had foreseen. The incision had torn apart at each end and weightless globules of blood were drifting out of it and totally obscuring the operative field. Seldal had discarded the cutter because its beak came into view gripping the suction unit, which it moved expertly along and inside the wound so that Conway could find and seal off the bleeders. Within a very few minutes the wound, now with torn, uneven edges and fully three times its original length, was clear and gaping open to reveal at its base a long, narrow ellipse of utter blackness.
“We have uncovered a strong, flexible, and light-absorbent membrane,” the Diagnostician resumed, “and two tissue samples have been taken. One is being sent out to you through the suction unit for more detailed study, but my analyzer reading indicates an organic material that is totally foreign to the surrounding tissues. Its cell structure is more characteristic of a vegetable than an—What the blazes is happening? We can feel the patient moving. It must remain absolutely still! We are not supposed to be in an area where accidental stimulation of the motor muscles is possible. Hellishomar, what is wrong?”
The Diagnostician’s words were lost in the bedlam of the outer ward, where the tractor and pressor units were emitting audible and visible signals of overload as their operators struggled to keep Hellishomar’s heaving body motionless. The Groalterri’s enormous head was jerking from side to side against its immaterial restraints, and the ends of the incision were tearing and bleeding again. Prilicla’s body was being shaken by an emotional gale, and everyone seemed to be shouting questions, instruction, or warnings at each other.