Forgotten was his stiff neck. He went tearing out and got one they had removed from a corpse. Yes, the same thing!
Abruptly he added it all up and rushed out to find MacKendrick. The doctor was working with a Psychlo skull he had cleaned and whitened. He was trying to find some means of entering it with instruments. He put it down on the table before him where the sockets stared sightlessly at him and composed himself to listen to Jonnie.
“That isn't anything very mysterious!” said Jonnie, pointing excitedly into the silver capsule he held. “It’s just a fuse! It doesn't vibrate or put out radio signals or anything. It's just a fuse”
Jonnie grabbed some pictures of one inside a Psychlo brain. “Look! You said the nerves this was fastened between were the primary impulse channels of their thought.”
“All right. Mathematics is logical thought! It is the approximation of being sensible! Now even if a Psychlo has a soul and does his thinking with a soul, or even if he doesn't have, mental action works between those two channels.
“So long as a Psychlo is thinking logically, there is a constant current between those two nerves. Even asleep there would be a current, a very slight one.
“Now up comes an alien. The Psychlo knows his whole race and empire depends upon keeping his mathematics a secret. And the alien wants to know about Psychlo mathematics. The Psychlo instantly shuts off thinking about them. Or a surge occurs and then a shutoff. Pop. Blown fuse!”
MacKendrick was quite interested. But he said, “That doesn't explain suicide.”
“All right! Look at this picture and look at this fuse. The silver capsule is very close to that bronze item that short-circuits pleasure and pain and action. Look at this fuse filament! When it parts, the ends drop down inside the capsule and you get a short circuit into the bronze item.
“The Psychlo has an instant impulse to kill! If he can't right then, the short circuit between the silver and bronze items acts as an obsession to kill that doesn't let up. He has to kill something and he winds up killing himself!"
MacKendrick thought it over and nodded. “But,” he said, “that doesn't explain the females.”
Jonnie got that type of capsule and looked at it. “It’s another kind of fuse. Since mathematics is logical thought, it would cause a concentration of current to begin. They probably are taught not to teach females mathematics– it's part of their moral code. And the females are noted for being illogical. When they start to think in mathematical terms or even try to, a current gets too heavy and they blow the fuse. They don't have a bronze object and they just go into a coma. Their wits won't connect anymore and they go out of communication with the nervous system.”
Jonnie paused. “My explanation may not be complete. But I know these are just fuses and short circuits. And that's how they protected their empire!”
“And why they're so crazy,” said MacKendrick. “I am sure you have the explanation and that those things are what you say they are.”
MacKendrick turned the Psychlo skull around on the table. It was a huge, massive, heavy thing. A complex mass of bone and joints. “There's only one thing wrong.”
Jonnie was all revved up with having gotten that far. He listened.
“We're no closer to getting those things out of their heads than we were,” said MacKendrick.
Jonnie laid the pictures and the capsules down on the table beside the skull and walked quietly out of the room.
It was definitely not a hopeful day.
Chapter 7
Jonnie lanced northwest in the Mark
32 battle plane.
The alert had come just over half an hour ago. Glencannon was in trouble.
It was Day 78, only fourteen days before Terl had scheduled himself to fire. He had not begun his panel on the last discs Jonnie had had. There had been a delay.
And now this! Glencannon was under attack en route.
The visitors, four hundred miles above Earth, had increased. There were eighteen of them now. Half-Captain Rogodeter Snowl had come back and with him he had brought four heavy war vessels. One of them at least, if not more, was a plane carrier. It was probably from this that the attack on Glencannon had been launched.
Jonnie had no communicator with him. He had simply been outside when the alert came. Stormalong and two other pilots had scrambled and Jonnie had simply grabbed an air mask and a plane. All the communication in the air right now was in Pali– both Glencannon and Stormalong had communicators with them and were using them. Thus Jonnie could not tell what was happening. The singsong of the Buddhists never showed excitement even in combat, so their voice tones told him nothing.
He was gaining altitude and widening his viewscreens. He had Stormalong and the other two ships just ahead of him. He had not yet picked up Glencannon.
Jonnie threw a scanner upward. Three of their visitors were way up there, not as clear in this bright daylight as they would be on scanners at night due to daytime ultraviolet in the air.
Was that the Vulcor-class vessel? The other two with it were larger, more bulky. Yes, that was the Vulcor-class: diamond-shaped bridge. Half-Captain Rogodeter Snowl himself.
The three weren't coming down-apparently it took a lot of solar accumulation to do that and they tended to reserve themselves. The other two must be plane carriers.
Yes! From one of them came a new launch.
Six needle-like craft were coming down like arrows.
Clearly, using Psychlo, Jonnie said, “Six new hornets from above!” That would warn Stormalong.
There was Glencannon. Streaking along at about one hundred thousand feet, flat-out, heading for the minesite. Where was his escort? He
should have an escort. No sign of them!
Four needles were shooting along behind Glencannon. Occasionally a long-range flash of fire laced out from them.
There went Stormalong!
In tight formation, the three planes cut straight through the pursuing Tolneps.
An explosion! A second gout of hot blue flame. And a third.
There was only one Tolnep racing out of the smoke.
Jonnie turned up to intercept the six coming down. They grew larger and larger in his sights.
He centered on the nose of the leader. His thumb hit the firing trip as he wildly swung sideways, sweeping his awesome firepower into the Tolnep's tight formation.
His viewscreen flared out with the explosions ahead.
A slight thump as a broken piece of a Tolnep plane touched his wing.
Jonnie flipped around as they went by him. He sighted in on the tail of the last ship. He hit the trip of the blast cannon. He was skidding so wildly from his turn that he missed. Four Tolneps left to go.
He flashed ahead of them and spun about. He was almost head-on with the Tolnep now leading. An instant before they would have collided, Jonnie's shots stuffed the Tolnep's own fire up his cannon barrels. The ship exploded.
Three Tolneps left. They looped and came on, firing in formation. The air about Jonnie was slashed. The Mark 32 took a hit in the windscreen. Half of it went black.
Jonnie's guns were going. One Tolnep! Two Tolneps!
The last one tried to make a run for it, shooting back into the heights.
Jonnie steadied his battle plane. He threw the firing sets onto “Flame” and
“Maximum Range.” He sent searching needles straight up.
The Tolnep shattered into a ragged ball of fire.
Where was Glencannon?
There he was, racing down to the minesite, almost there.
He had a Tolnep right on his tail.
Stormalong and his other two ships were slashing down on the Tolnep.
The guard opened the atmosphere armor curtain and Glencannon flashed through. He was safe!