The fourth dimension was a wonderful thing. Ellis lit his pipe, leaning his briefcase against his trouser-leg and groping in his coat pocket for his tobacco. He still had thirty seconds to get to work. Plenty of time. The pipe-lighter flared and he sucked in expertly. He snapped the lighter shut and restored it to his pocket.

A wonderful thing, all right. The Jiffi-scuttler had already revolutionized society. It was now possible to go anywhere in the world instantly, with no time lapse. And without wading through endless lanes of other monojets, also going places. The transportation problem had been a major headache since the middle of the twentieth century. Every year more families moved from the cities out into the country, adding numbers to the already swollen swarms that choked the roads and jetlanes. But it was all solved now. An infinite number of Jiffi-scuttlers could be set up; there was no interference between them. The Jiffi-scuttler bridged distances non-spacially, through another dimension of some kind (they hadn't explained that part too clearly to him). For a flat thousand credits any Terran family could have Jiffi-scuttler hoops set up, one in the back yard -- the other in Berlin, or Bermuda, or San Francisco, or Port Said. Anywhere in the world. Of course, there was one drawback. The hoop had to be anchored in one specific spot. You picked your destination and that was that. But for an office worker, it was perfect. Step in one end, step out the other. Five steps -- a hundred and sixty miles. A hundred and sixty miles that had been a two-hour nightmare of grinding gears and sudden jolts, monojets cutting in and out, speeders, reckless flyers, alert cops waiting to pounce, ulcers and bad tempers. It was all over now. All over for him, at least, as an employee of Terran Development, the manufacturer of the Jiffi-scuttler. And soon for everybody, when they were commercially on the market.

in one specific spot. You picked your destination and that was that. But for an office worker, it was perfect. Step in one end, step out the other. Five steps -- a hundred and sixty miles. A hundred and sixty miles that had been a two-hour nightmare of grinding gears and sudden jolts, monojets cutting in and out, speeders, reckless flyers, alert cops waiting to pounce, ulcers and bad tempers. It was all over now. All over for him, at least, as an employee of Terran Development, the manufacturer of the Jiffi-scuttler. And soon for everybody, when they were commercially on the market.

It was then he saw them.

The wavery gray haze was thin there. A sort of thin spot where the shimmer wasn't so strong. Just a bit beyond his foot and past the corner of his briefcase.

Beyond the thin spot were three tiny figures. Just beyond the gray waver. Incredibly small men, no larger than insects. Watching him with incredulous astonishment.

Ellis gazed down intently, his briefcase forgotten. The three tiny men were equally dumbfounded. None of them stirred, the three tiny figures, rigid with awe. Henry Ellis bent over, his mouth open, eyes wide.

A fourth little figure joined the others. They all stood rooted to the spot, eyes bulging. They had on some kind of robes. Brown robes and sandals. Strange, unTerran costumes. Everything about them was unTerran. Their size, their oddly colored dark faces, their clothing -- and their voices.

Suddenly the tiny figures were shouting shrilly at each other, squeaking a strange gibberish. They had broken out of their freeze and now ran about in queer, frantic circles. They raced with incredible speed, scampering like ants on a hot griddle. They raced jerkily, their arms and legs pumping wildly. And all the time they squeaked in their shrill high-pitched voices.

Ellis found his briefcase. He picked it up slowly. The figures watched in mixed wonder and terror as the huge bag rose, only a short distance from them. An idea drifted through Ellis's brain. Good Lord -could they come into the Jiffi-scuttler, through the gray haze?

But he had no time to find out. He was already late as it was. He pulled away and hurried towards the New York end of the tunnel. A second later he stepped out in the blinding sunlight, abruptly finding himself on the busy street-corner in front of his office.

"Hey, there, Hank!" Donald Potter shouted, as he raced through the doors into the TD building. "Get with it!"

"Sure, sure." Ellis followed after him automatically. Behind the entrance to the Jiffi-scuttler was a vague circle above the pavement, like the ghost of a soap-bubble.

He hurried up the steps and inside the offices of Terran Development, his mind already on the hard day ahead.

As they were locking up the office and getting ready to go home, Ellis stopped coordinator Patrick Miller in his office. "Say, Mr Miller. You're also in charge of the research end, aren't you?"

"Yeah. So?"

"Let me ask you something. Just where does the Jiffi-scuttler go? It must go somewhere."

"It goes out of this continuum completely." Miller was impatient to get home. "Into another dimension."

"I know that. But --where?"

Miller unfolded his breast-pocket handkerchief rapidly and spread it out on his desk. "Maybe I can explain it to you this way. Suppose you're a two dimensional creature and this handkerchief represents your --"

"I've seen that a million times," Ellis said, disappointed. "That's merely an analogy, and I'm not interested in an analogy. I want a factual answer. Where does my Jiffi-scuttler go, between here and Cedar Groves?"

Miller laughed. "What the hell do you care?"

Ellis became abruptly guarded. He shrugged indifferently. "Just curious. It certainly must go some place."

Ellis became abruptly guarded. He shrugged indifferently. "Just curious. It certainly must go some place."

"As a matter of fact --" Ellis began.

"What is it?"

Ellis clamped his sentence off. "Nothing." He picked up his briefcase. "Nothing at all. I'll see you tomorrow. Thanks, Mr Miller. Goodnight."

He hurried downstairs and out of the TD building. The faint outline of his Jiffi-scuttler was visible in the fading late-afternoon sunlight. The sky was already full of mono jets taking off. Weary workers beginning their long trip back to their homes in the country. The endless commute. Ellis made his way to the hoop and stepped into it. Abruptly the bright sunlight dimmed and faded.

Again he was in the wavery gray tunnel. At the far end flashed a circle of green and white. Rolling green hills and his own house. His backyard. The cedar tree and flower beds. The town of Cedar Groves.

Two steps down the tunnel. Ellis halted, bending over. He studied the floor of the tunnel intently. He studied the misty gray wall, where it rose and flickered -- and the thin place. The place he had noticed.

They were still there. Still? It was a different bunch. This time ten or eleven of them. Men and women and children. Standing together, gazing up at him with awe and wonder. No more than a half-inch high, each. Tiny distorted figures, shifting and changing shape oddly. Altering colors and hues.

Ellis hurried on. The tiny figures watched him go. A brief glimpse of their microscopic astonishment -- and then he was stepping out into his backyard.

He clicked off the Jiffi-scuttler and mounted the back steps. He entered his house, deep in thought.

"Hi," Mary cried, from the kitchen. She rustled towards him in her hip-length mesh shirt, her arms out. "How was work today?"

"Fine."

"Is anything wrong? You look -- strange."

"No. No, nothing's wrong." Ellis kissed his wife absently on the forehead. "What's for dinner?"

"Something choice. Siriusian mole steak. One of your favorites. Is that all right?"

"Sure." Ellis tossed his hat and coat down on the chair. The chair folded them up and put them away. His thoughtful, preoccupied look still remained. "Fine, honey."