Collected Stories Of Arthur C. Clarke (170 page)

So now it was a straight fight between
Diana
and
Lebedev
– for though the Martians had not given up, they were a thousand miles astern and no longer counted as a serious threat. For that matter, it was hard to see what
Lebedev
could do to overtake
Diana
’s lead; but all the way around the second lap, through eclipse again and the long, slow drift against the Sun, Merton felt a growing unease.

He knew the Russian pilots and designers. They had been trying to win this race for twenty years – and, after all, it was only fair that they should, for had not Pyotr Nikolaevich Lebedev been the first man to detect the pressure of sunlight, back at the very beginning of the twentieth century? But they had never succeeded.

And they would never stop trying. Dimitri was up to something – and it would be spectacular.

Aboard the official launch, a thousand miles behind the racing yachts, Commodore van Stratten looked at the radiogram with angry dismay. It had travelled more than a hundred million miles, from the chain of solar observatories swinging high above the blazing surface of the Sun; and it brought the worst possible news.

The Commodore – his title was purely honorary, of course; back on Earth he was Professor of Astrophysics at Harvard – had been half expecting it. Never before had the race been arranged so late in the season. There had been many delays; they had gambled – and now, it seemed, they might all lose.

Deep beneath the surface of the Sun, enormous forces were gathering. At any moment the energies of a million hydrogen bombs might burst forth in the awesome explosion known as a solar flare. Climbing at millions of miles an hour, an invisible fireball many times the size of Earth would leap from the Sun and head out across space.

The cloud of electrified gas would probably miss the Earth completely. But if it did not, it would arrive in just over a day. Spaceships could protect themselves, with their shielding and their powerful magnetic screens; but the lightly built solar yachts, with their paper-thin walls, were defenceless against such a menace. The crews would have to be taken off, and the race abandoned.

John Merton knew nothing of this as he brought
Diana
around the Earth for the second time. If all went well, this would be the last circuit, both for him and for the Russians. They had spiralled upward by thousands of miles, gaining energy from the Sun’s rays. On this lap, they should escape from Earth completely, and head outward on the long run to the Moon. It was a straight race now;
Sunbeam
’s crew had finally withdrawn exhausted, after battling valiantly with their spinning sail for more than a hundred thousand miles.

Merton did not feel tired; he had eaten and slept well, and
Diana
was behaving herself admirably. The autopilot, tensioning the rigging like a busy little spider, kept the great sail trimmed to the Sun more accurately than any human skipper could have. Though by this time the two square miles of plastic sheet must have been riddled by hundreds of micrometeorites, the pinhead-sized punctures had produced no falling off of thrust.

He had only two worries. The first was shroud line number eight, which could no longer be adjusted properly. Without any warning, the reel had jammed; even after all these years of astronautical engineering, bearings sometimes seized up in vacuum. He could neither lengthen nor shorten the line, and would have to navigate as best he could with the others. Luckily, the most difficult manoeuvres were over; from now on,
Diana
would have the Sun behind her as she sailed straight down the solar wind. And as the old-time sailors had often said, it was easy to handle a boat when the wind was blowing over your shoulder.

His other worry was
Lebedev
, still dogging his heels three hundred miles astern. The Russian yacht had shown remarkable manoeuvrability, thanks to the four great panels that could be tilted around the central sail. Her flipovers as she rounded the Earth had been carried out with superb precision. But to gain manoeuvrability she must have sacrificed speed. You could not have it both ways; in the long, straight haul ahead, Merton should be able to hold his own. Yet he could not be certain of victory until, three or four days from now,
Diana
went flashing past the far side of the Moon.

And then, in the fiftieth hour of the race, just after the end of the second orbit around Earth, Markoff sprang his little surprise.

‘Hello, John,’ he said casually over the ship-to-ship circuit. ‘I’d like you to watch this. It should be interesting.’

Merton drew himself across to the periscope and turned up the magnification to the limit. There in the field of view, a most improbable sight against the background of the stars, was the glittering Maltese cross of
Lebedev
, very small but very clear. As he watched, the four arms of the cross slowly detached themselves from the central square, and went drifting away, with all their spars and rigging into space.

Markoff had jettisoned all unnecessary mass, now that he was coming up to escape velocity and need no longer plod patiently around the Earth, gaining momentum on each circuit. From now on,
Lebedev
would be almost unsteerable – but that did not matter; all the tricky navigation lay behind her. It was as if an old-time yachtsman had deliberately thrown away his rudder and heavy keel, knowing that the rest of the race would be straight downwind over a calm sea.

‘Congratulations, Dimitri,’ Merton radioed. ‘It’s a neat trick. But it’s not good enough. You can’t catch up with me now.’

‘I’ve not finished yet,’ the Russian answered. ‘There’s an old winter’s tale in my country about a sleigh being chased by wolves. To save himself, the driver has to throw off the passengers one by one. Do you see the analogy?’

Merton did, all too well. On this final straight lap, Dimitri no longer needed his copilot.
Lebedev
could really be stripped down for action.

‘Alexis won’t be very happy about this,’ Merton replied. ‘Besides, it’s against the rules.’

‘Alexis isn’t happy, but I’m the captain. He’ll just have to wait around for ten minutes until the Commodore picks him up. And the regulations say nothing about the size of the crew –
you
should know that.’

Merton did not answer; he was too busy doing some hurried calculations, based on what he knew of
Lebedev
’s design. By the time he had finished, he knew that the race was still in doubt.
Lebedev
would be catching up with him at just about the time he hoped to pass the Moon.

But the outcome of the race was already being decided, ninety-two million miles away.

On Solar Observatory Three, far inside the orbit of Mercury, the automatic instruments recorded the whole history of the flare. A hundred million square miles of the Sun’s surface exploded in such blue-white fury that, by comparison, the rest of the disc paled to a dull glow. Out of that seething inferno, twisting and turning like a living creature in the magnetic fields of its own creation, soared the electrified plasma of the great flare. Ahead of it, moving at the speed of light, went the warning flash of ultraviolet and X rays. That would reach Earth in eight minutes, and was relatively harmless. Not so the charged atoms that were following behind at their leisurely four million miles an hour – and which, in just over a day, would engulf
Diana
,
Lebedev
, and their accompanying little fleet in a cloud of lethal radiation.

The Commodore left his decision to the last possible minute. Even when the jet of plasma had been tracked past the orbit of Venus, there was a chance that it might miss the Earth. But when it was less than four hours away, and had already been picked up by the Moon-based radar network, he knew that there was no hope. All solar sailing was over, for the next five or six years – until the Sun was quiet again.

A great sigh of disappointment swept across the solar system.
Diana
and
Lebedev
were halfway between Earth and Moon, running neck and neck – and now no one would ever know which was the better boat. The enthusiasts would argue the result for years; history would merely record: ‘Race cancelled owing to solar storm.’

When John Merton received the order, he felt a bitterness he had not known since childhood. Across the years, sharp and clear, came the memory of his tenth birthday. He had been promised an exact scale model of the famous spaceship
Morning Star
, and for weeks had been planning how he would assemble it, where he would hang it in his bedroom. And then, at the last moment, his father had broken the news. ‘I’m sorry, John – it cost too much money. Maybe next year …’

Half a century and a successful lifetime later, he was a heartbroken boy again.

For a moment, he thought of disobeying the Commodore. Suppose he sailed on, ignoring the warning? Even if the race was abandoned, he could make a crossing to the Moon that would stand in the record books for generations.

But that would be worse than stupidity; it would be suicide – and a very unpleasant form of suicide. He had seen men die of radiation poisoning, when the magnetic shielding of their ships had failed in deep space. No – nothing was worth that….

He felt as sorry for Dimitri Markoff as for himself. They had both deserved to win, and now victory would go to neither. No man could argue with the Sun in one of its rages, even though he might ride upon its beams to the edge of space.

Only fifty miles astern now, the Commodore’s launch was drawing alongside
Lebedev
, preparing to take off her skipper. There went the silver sail, as Dimitri – with feelings that he would share – cut the rigging. The tiny capsule would be taken back to Earth, perhaps to be used again; but a sail was spread for one voyage only.

He could press the jettison button now, and save his rescuers a few minutes of time. But he could not do it; he wanted to stay aboard to the very end, on the little boat that had been for so long a part of his dreams and his life. The great sail was spread now at right angles to the Sun, exerting its utmost thrust. Long ago it had torn him clear of Earth, and
Diana
was still gaining speed.

Then, out of nowhere, beyond all doubt or hesitation, he knew what must be done. For the last time, he sat down before the computer that had navigated him halfway to the Moon.

When he had finished, he packed the log and his few personal belongings. Clumsily, for he was out of practice, and it was not an easy job to do by oneself, he climbed into the emergency survival suit. He was just sealing the helmet when the Commodore’s voice called over the radio.

‘We’ll be alongside in five minutes, Captain. Please cut your sail, so we won’t foul it.’

John Merton, first and last skipper of the Sun yacht
Diana
, hesitated a moment. He looked for the last time around the tiny cabin, with its shining instruments and its neatly arranged controls, now all locked in their final positions. Then he said into the microphone: ‘I’m abandoning ship. Take your time to pick me up.
Diana
can look after herself.’

There was no reply from the Commodore, and for that he was grateful. Professor van Stratten would have guessed what was happening – and would know that, in these final moments, he wished to be left alone.

He did not bother to exhaust the air lock, and the rush of escaping gas blew him gently out into space. The thrust he gave her then was his last gift to
Diana
. She dwindled away from him, sail glittering splendidly in the sunlight that would be hers for centuries to come. Two days from now she would flash past the Moon; but the Moon, like the Earth, could never catch her. Without his mass to slow her down, she would gain two thousand miles an hour in every day of sailing. In a month, she would be travelling faster than any ship that man had ever built.

As the Sun’s rays weakened with distance, so her acceleration would fall. But even at the orbit of Mars, she would be gaining a thousand miles an hour in every day. Long before then, she would be moving too swiftly for the Sun itself to hold her. Faster than a comet had ever streaked in from the stars, she would be heading out into the abyss.

The glare of rockets, only a few miles away, caught Merton’s eye. The launch was approaching to pick him up – at thousands of times the acceleration that
Diana
could ever attain. But its engines could burn for a few minutes only, before they exhausted their fuel – while
Diana
would still be gaining speed, driven outward by the Sun’s eternal fires, for ages yet to come.

‘Goodbye, little ship,’ said John Merton. ‘I wonder what eyes will see you next, how many thousand years from now?’

At last he felt at peace, as the blunt torpedo of the launch nosed up beside him. He would never win the race to the Moon; but his would be the first of all man’s ships to set sail on the long journey to the stars.