The mail ship, MR4, spun crazily through space a million miles off her trajectory. Her black-painted hull resembled a long thermonuclear weapon, and below her and only a scant twenty million miles away burned the hungry, flaming maw of the Sun.

The atomic-powered refrigeration units of the MR4 were working full blast--and still her internal and external temperatures were slowly and inexorably rising. Her atomic engines had been long since silenced--beaten by the inexhaustible, fiery strength of the invincible opponent waiting patiently a narrowing twenty million miles “below.”

Hal Burnett twisted painfully on the narrow space-bunk, his tormented body thrusting desperately against the restraining bands of the safety straps that lashed him in against the dangers of non-gravity.

He moaned, and twisted sideways, while his half-asleep mind struggled on an almost instinctive level against a dimly-remembered, utterly intolerable reality.

It was a losing battle. He was suddenly wide awake, staring in horror at the vibrating bulkheads of the deserted little mail ship. For a moment his conscious barriers against reality were so completely down that he felt mortally terrified and overwhelmed by the vast emptiness about him. For a moment the mad idea swept into his mind that perhaps the universe was just another illusion, an echo of man’s own inner loneliness.

Realizing his danger, Burnett quickly undid the restraining safety straps, sat up and propelled himself outward from the edge of his bunk. The sudden surge of physical action swept the cobwebs from his mind.

He thought of his father--and there was bitterness in his heart and frustration, and a rebellious, smouldering anger. The old man would never know how close he had come to cracking up.

For a moment he wondered fearfully if his father’s cold and precise appraisal of his character and courage had been correct. Suppose he was unable to stand the rigid strains and pressures of a real emergency. Suppose-- He tightened his lips in defiant self-justification. What did they expect of a twenty-year-old kid anyway? He was, after all, the youngest and probably the greenest mail pilot in the entire Universal Run.

Suddenly the defensive barriers his mind had thrown up against the grievous flaw in his character, which made him feel uncertain of himself when he should have felt strong and capable, crumbled away completely. He could no longer pretend, no longer deceive himself. He hated his father because the elder Burnett had never known a moment of profound self-distrust in his entire life.

He remembered his father’s favorite line of reasoning with a sudden, overwhelming resentment. “Fear can and must be controlled. If you have your objective clearly in mind a new experience, no matter how hazardous, will quickly become merely a routine obstacle to be surmounted, a yardstick by which a man can measure his own maturity and strength of purpose. You’ll find peace of mind in doing your work ably and well and by ignoring all danger to yourself.”

It was so easy to say, so hard to live up to. How, for instance, could a twenty-year-old kid on his first mail run hope to completely outwit fatigue, or even forget, for a single moment, that it was his first run. Fatigue had caused his undoing, but had he been completely fearless he might have found a way to save himself, might have managed somehow to prevent the small, navigational errors from piling up until they had carried him past the point of no return.

A constant re-checking of every one of his instruments might have saved him. But he had been too terrified to think straight, and too ashamed of his “first-run” inexperience to send out a short wave message requesting emergency instructions and advice. Now he was hopelessly off his course and it was too late. Too late!

He could almost feel the steadily-growing pull of his mindless enemy in the distant sky. Floating and kicking his way over to the Tele-screen, he quickly switched the instrument on. Rotating the control dials, he brought the blinding white image of the onrushing solar disk into perfect focus. Automatically he adjusted the two superimposed polaroid filters until the proper amount of light was transmitted to his viewing screen. They really built ships and filters these days, he reflected wryly. Now if they could only form a rescue squad just as easily--

Even through the viewing screen he could almost feel the hot blast of white light hit his face with the physical impact of a baseball bat. With what was almost a whimper of suppressed fear he rocked backward on his heels.

The Sun’s ghastly prominences seemed to reach beckoning fingers toward him, as its flood of burning, radiant light seared through the incalculable cold of space, and its living corona of free electrons and energy particles appeared to swell and throb menacingly.

Fearfully he watched the flaming orb draw closer and closer, and as its pull grew more pronounced he wondered if it were not, in some nightmarishly fantastic fashion becoming malignantly aware of him. It resembled nothing so much as a great festering sore; an infection of the very warp-and-woof stuff of space.

He flipped off the power control on the Tele-screen and watched the image fade away with a depleted whine of dying energy. That incandescent inferno out there-- Grimly he tried to recall the name of the man who had said that, philosophically, energy is not actually a real thing at all.

He knew better than to waste time trying the pilot controls again. They were hopelessly jammed by the great magnetic attraction of the Sun. They had been jammed for hours now. He forced his way back to his bunk, and securely lashed himself to it again. Sleep was his only hope now, his only real escape from the growing, screaming hysteria within him.

He flung an arm across his tired face. His thin features trembled as he remembered the continuous alterations in his trajectory that had brought him within range of the Sun’s mighty pull. He remembered also every detail of the last and gravest of the series of miscalculations that had swept him from the established route of the regular Venus-Mercury mail run, and threatened him with a violent, flaming end.

Greatly off course, he had been approaching Mercury, a routine thirty-six million miles from the Sun. On this, the final leg of his long journey, he had deviated just far enough from the extreme limits of safety to find himself and his ship gripped inexorably in the mighty magnetic fields of the Sun’s passage...

He remembered a name-- Josephine.

There would be no lover’s meeting now on the green fields of Earth in the dusk of a summer evening. There would be no such meeting now. Not unless the prayers and dreams a boy and a girl had shared had followed him, plunging senselessly into the cold glacial heart of interstellar space.

His false bravado began to break and he began to weep quietly. He began to wish with all his heart that he had never left home.

The sudden crackling of the almost static-jammed ultra-wave radio snapped through to his mind. Quickly he began to free himself from the bunk.

“MR4, come in, MR4.”

An eternity seemed to pass as he floated across the room, deliberately disregarding the strategically-placed hand-grips on the walls, floor, and ceiling. It seemed aeons before he reached the narrow little control compartment, and got the ultra-wave radio into action, nearly wrecking it in his clumsy-fingered haste.

“MR4 to Earth. Over.”

He waited a few moments and then repeated the message as no acknowledgment came through. Then he abruptly remembered the nearby presence of the Sun and its interference with radio transmission and reception. He was white and shaken by the time his message was received and his report requested and given.

He gave the whole tragic picture in frantic short wave. The amount of atomic fuel left in the ship, the internal and external temperatures, the distance from the Sun, and the strength of the solar disk’s magnetic field and his rate of drift toward it--along with a staggering list of other pertinent factors.

At last it was over and he stood by awaiting the decision from Earth headquarters.

It came at last.

“MR4.” The growling voice was Donnelly’s, the huge space-engineer in charge of the smaller mail-rocket units. “You’re in a tough spot but we’ve got an expert here from the Government. He’s worked on deals like this with me before and he’s got an idea.

“Here’s the substance of it. We’re going to send out a space tug from Mercury to see if we can haul you in. It’s a new, experimental tug and it’s been kept under wraps until now. But it’s been designed for jobs like this and we figure it can sure as hell do it.

“There’s just one hitch, though, kid. It’s a mighty powerful ship so there’s going to be a terrific shock when it contacts you and the magnetic grapples set to work. In your medicine kit you’ll find a small hypo in a red-sealed plastic box. Take the shot that’s in it immediately and we’ll have the tug out there as soon as we can. It will probably take about twelve hours.”

Donnelly’s voice broke and he hesitated strangely for a moment. “You’ll be out fast,” he went on. “So you won’t feel a thing when the shock wave hits you. There’s less chance of injuries, this way.”

“It’s a lousy thing to do,” cried Donnelly as he snapped off the set. “A rotten, heartless way of giving the lad false hopes. But then you don’t give a damn about anybody’s feelings but your own, do you, Doc?”

“Take it easy, Joe--”

“Shut up, Williams. I’m talking to this little Government time-server over here, not to you.”

The psychiatrist shrugged wearily. “I don’t care what you think. I’ve worked with you both on cases similar to this before, though I’ll admit that none of them were quite as hopeless. In any case, I’ll do it my way, or not at all.”

“Maybe you will, maybe you will,” said Donnelly. “But if I had to wait thirty days in that thing and somebody told me it was only a matter of hours--”

“I know what I’m doing even if you think that I don’t. The Government has developed a set approach in matters like this. Fortunately, there aren’t many of them. Perhaps if there were--”

“Let me take over, Doc,” broke in Donnelly. “I’m a space-engineer and that makes me far better qualified to handle this than you are. Why the hell they ever put a psychiatrist on this job in the first place is something I’ll never know, if I live to be a hundred and ten. It’s a job for an engineer, not a brain washer.”

“There’s a lot of things you’ll never know, Donnelly,” the gaunt, thin little man sighed wearily. He sat down at the long mahogany table in the Radio Room. With a careless wave of one arm, he swept a pile of papers and magazines to the floor.

“Try and get this through your head, Donnelly. There’s not too much you can do by yourself for that boy up there. You just don’t know how to cope with the psychological intangibles. That’s why they have me here--so that we could work together as a team.

“Now the sooner you get on that radio and follow my instructions for the pilot the sooner we’ll get this over with. Then maybe I can go home and spend a hundred years trying to forget about it. Until then please try and keep your personal opinions to yourself. Please.”

Donnelly’s face flushed a still deeper red. His fists clenched and, as a muscle started to twitch warningly in his cheek, he started to get up. He stopped for a moment--frozen in silence. Then he relaxed and pushed back his chair. With a heavy sigh, he maneuvered his huge bear of a body to its feet.

He rumbled something disgustedly in his throat and then spat casually on the floor. “Williams,” he thundered. “Get the hell out of here and get us some coffee.”

He waited a moment until the only witness had left the room and then, with grim determination, he turned to the little psychiatrist seated at the table.

“You, Doc,” he said coldly and with deliberate malice, “are a dirty, unclean little--”

Williams, when he eased his slight body through the door a few minutes later, found a suspicious scene. The little doctor, his face flushed and rage-twisted, his effortless and almost contemptuous composure shaken for once, was on his feet. Speechless, he faced the grinning space-engineer who was waving a huge and warning finger in his face.

“Easy, Doc,” Donnelly roared in a friendly voice. “I might take advantage of it if you keep on giving me a good excuse. Then where would all your psychiatry and your fine overlording manners get you?”

“Joe,” yelled Williams in explosive sudden fright. “Leave him alone. You’re liable to have the Government Police down on us.”

“Sure, Williams. The police and the newspapers too. They’d just love to have the taxpayers find out what they’re doing to those kids out in deep space. What would they call it, Doc? Just an interesting psychological experiment? Is that what it’s meant to be, eh, Doc?”

He chuckled suddenly as the little doctor flinched under his virulent attack. “I really hit the spot that time, didn’t I, Doc? So that’s what the Government’s so scared and hush-hush about. They’re really scared to hell and back, aren’t they? I wonder what’s really going on behind all this?”