It lacked nine minutes of the zero hour. In nine minutes I should be on my way out into the great void, or in nine minutes I should be dead. If all did not go well, the disaster would follow within a fraction of a split second after I touched the first firing control.

Seven minutes! My throat felt dry and parched; I wanted a drink of water, but there was no time.

Four minutes! Thirty-five million miles are a lot of miles, yet I planned on spanning them in between forty and forty-five days.

Two minutes! I inspected the oxygen gauge and opened the valve a trifle wider.

One minute! I thought of my mother and wondered if she were way out there somewhere waiting for me.

Thirty seconds! My hand was on the control. Fifteen secondsl Ten, five, four, three, two-- one!

I turned the pointer! There was a muffled roar. The torpedo leaped forward. I was off!

I knew that the take-off was a success. I glanced through the port at my side at the instant that the torpedo started, but so terrific was its initial speed that I saw only a confused blur as the landscape rushed past. I was thrilled and delighted by the ease and perfection with which the take-off had been accomplished, and I must admit that I was not a little surprised by the almost negligible effects that were noticeable in the cabin. I had had the sensation as of a giant hand pressing me suddenly back against the upholstery of my chair but that had passed almost at once, and now there was no sensation different from that which one might experience sitting in an easy chair in a comfortable drawing-room on terra firma.

There was no sensation of motion after the first few seconds that were required to pass through the earth's atmosphere, and now that I had done all that lay within my power to do. I could only leave the rest to momentum, gravitation, and fate. Releasing the straps that held me to the chair, I moved about the cabin to look through the various ports, of which there were several in the sides, keel, and top of the torpedo Space was a black void dotted with countless points of light. The earth I could not see, for it lay directly astern; far ahead was Mars. All seemed well. I switched on the electric lights, and seating myself at the table, made the first entries in the log; then I checked over various computations of time and distances.

My calculations suggested that in about three hours from the take-off the torpedo would be moving almost directly toward Mars; and from time to time I took observations through the wide-angle telescopic periscope that is mounted flush with the upper surface of the torpedo's shell, but the results were not entirely reassuring. In two hours Mars was dead ahead--the arc of the trajectory was not flattening as it should. I became apprehensive. What was wrong? Where had our careful computations erred?

I left the periscope and gazed down through the main keel port. Below and ahead was the Moon, a gorgeous spectacle as viewed through the clear void of space from a distance some seventy-two thousand miles less than I had ever seen it before and with no earthly atmosphere to reduce visibility. Tycho, Plato, and Copernicus stood out in bold relief upon the brazen disc of the great satellite, deepening by contrast the shadows of Mare Serenitatis and Mare Tranquilitatis. The rugged peaks of the Apennine and the Altai lay revealed as distinctly as I had ever seen them through the largest telescope. I was thrilled, but I was distinctly worried, too.

Three hours later I was less than fifty-nine thousand miles from the Moon; where its aspect had been gorgeous before, it now beggared description, but my apprehension had cause to increase in proportion; I might say, as the square of its increasing gorgeousness. Through the periscope I had watched the arc of my trajectory pass through the plane of Mars and drop below it. I knew quite definitely then that I could never reach my goal. I tried not to think of the fate that lay ahead of me; but, instead, sought to discover the error that had wrought this disaster.

For an hour I checked over various calculations, but could discover nothing that might shed light on the cause of my predicament; then I switched off the lights and looked down through the keel port to have a closer view of the Moon. It was not there! Stepping to the port side of the cabin, I looked through one of the heavy circular glasses out into the void of space. For an instant I was horror stricken; apparently just off the port bow loomed an enormous world. It was the Moon, less than twenty-three thousand miles away, and I was hurtling toward it at the rate of thirty-six thousand miles an hourl

I leaped to the periscope, and in the next few seconds I accomplished some lightning mental calculating that must constitute an all-time record. I watched the deflection of our course in the direction of the Moon, following it across the lens of the periscope, I computed the distance to the Moon and the speed of the torpedo, and I came to the conclusion that I had better than a fighting chance of missing the great orb. I had little fear of anything but a direct hit, since our speed was so great that the attraction of the Moon could not hold us if we missed her even by a matter of feet; but it was quite evident that it had affected our flight, and with this realization came the answer to the question that had been puzzling me.

To my mind flashed the printer's story of the first perfect book. It had been said that no book had ever before been published containing not a single error.