Rule Four: Throw lots of assorted items of sporting equipment over the wall for the players. Anything will do - cricket bats, basecube bats, tennis guns, skis, anything you can get a good swing with.

Rule Five: The players should now lay about themselves for all they are worth with whatever they find to hand. Whenever a player scores a “hit” on another player, he should immediately run away and apologize from a safe distance.

Apologies should be concise, sincere and, for maximum clarity and points, delivered through a megaphone.

Rule Six: The winning team shall be the first team that wins.

Curiously enough, the more the obsession with the game grows in the higher dimensions, the less it is actually played, since most of the competing teams are now in a state of permanent warfare with each other over the interpretation of these rules. This is all for the best, because in the long run a good solid war is less psychologically damaging than a protracted game of Brockian Ultra-Cricket.

As Arthur ran darting, dashing and panting down the side of the mountain he suddenly felt the whole bulk of the mountain move very, very slightly beneath him. There was a rumble, a roar, and a slight blurred movement, and a lick of heat in the distance behind and above him. He ran in a frenzy of fear. The land began to slide, and he suddenly felt the force of the word “landslide” in a way which had never been apparent to him before. It had always just been a word to him, but now he was suddenly and horribly aware that sliding is a strange and sickening thing for land to do. It was doing it with him on it. He felt ill with fear and shaking. The ground slid, the mountain slurred, he slipped, he fell, he stood, he slipped again and ran. The avalanche began.

Stones, then rocks, then boulders which pranced past him like clumsy puppies, only much, much bigger, much, much harder and heavier, and almost infinitely more likely to kill you if they fell on you. His eyes danced with them, his feet danced with the dancing ground. He ran as if running was a terrible sweating sickness, his heart pounded to the rhythm of the pounding geological frenzy around him.

The logic of the situation, i.e. that he was clearly bound to survive if the next foreshadowed incident in the saga of his inadvertent persecution of Agrajag was to happen, was utterly failing to impinge itself on his mind or exercise any restraining influence on him at this time. He ran with the fear of death in him, under him, over him and grabbing hold of his hair.

And suddenly he tripped again and was hurled forward by his considerable momentum. But just at the moment that he was about to hit the ground astoundingly hard he saw lying directly in front of him a small navy-blue hold-all that he knew for a fact he had lost in the baggage-retrieval system at Athens airport some ten years in his personal time-scale previously, and in his astonishment he missed the ground completely and bobbed off into the air with his brain singing.

What he was doing was this: he was flying. He glanced around him in surprise, but there could be no doubt that that was what he was doing. No part of him was touching the ground, and no part of him was even approaching it. He was simply floating there with boulders hurtling through the air around him.

He could now do something about that. Blinking with the non-effort of it he wafted higher into the air, and now the boulders were hurtling through the air beneath him.

He looked downwards with intense curiosity. Between him and the shivering ground were now some thirty feet of empty air, empty that is if you discounted the boulders which didn’t stay in it for long, but bounded downwards in the iron grip of the law of gravity; the same law which seemed, all of a sudden, to have given Arthur a sabbatical.

It occurred to him almost instantly, with the instinctive correctness that self-preservation instills in the mind, that he mustn’t try to think about it, that if he did, the law of gravity would suddenly glance sharply in his direction and demand to know what the hell he thought he was doing up there, and all would suddenly be lost.

So he thought about tulips. It was difficult, but he did. He thought about the pleasing firm roundness of the bottom of tulips, he thought about the interesting variety of colours they came in, and wondered what proportion of the total number of tulips that grew, or had grown, on the Earth would be found within a radius of one mile from a windmill. After a while he got dangerously bored with this train of thought, felt the air slipping away beneath him, felt that he was drifting down into the paths of the bouncing boulders that he was trying so hard not to think about, so he thought about Athens airport for a bit and that kept him usefully annoyed for about five minutes - at the end of which he was startled to discover that he was now floating about two hundred yards above the ground.

He wondered for a moment how he was going to get back down to it, but instantly shied away from that area of speculation again, and tried to look at the situation steadily.

He was flying, What was he going to do about it? He looked back down at the ground. He didn’t look at it hard, but did his best just to give it an idle glance, as it were, in passing. There were a couple of things he couldn’t help noticing. One was that the eruption of the mountain seemed now to have spent itself - there was a crater just a little way beneath the peak, presumably where the rock had caved in on top of the huge cavernous cathedral, the statue of himself, and the sadly abused figure of Agrajag.

The other was his hold-all, the one he had lost at Athens airport. It was sitting pertly on a piece of clear ground, surrounded by exhausted boulders but apparently hit by none of them. Why this should be he could not speculate, but since this mystery was completely overshadowed by the monstrous impossibility of the bag’s being there in the first place, it was not a speculation he really felt strong enough for anyway. The thing is, it was there. And the nasty, fake leopard-skin bag seemed to have disappeared, which was all to the good, if not entirely to the explicable.

He was faced with the fact that he was going to have to pick the thing up. Here he was, flying along two hundred yards above the surface of an alien planet the name of which he couldn’t even remember. He could not ignore the plaintive posture of this tiny piece of what used to be his life, here, so many light-years from the pulverized remains of his home.

Furthermore, he realized, the bag, if it was still in the state in which he lost it, would contain a can which would have in it the only Greek olive oil still surviving in the Universe.

Slowly, carefully, inch by inch, he began to bob downwards, swinging gently from side to side like a nervous sheet of paper feeling its way towards the ground.

It went well, he was feeling good. The air supported him, but let him through. Two minutes later he was hovering a mere two feet above the bag, and was faced with some difficult decision. He bobbed there lightly. He frowned, but again, as lightly as he could.

If he picked the bag up, could he carry it? Mightn’t the extra weight just pull him straight to the ground?

Mightn’t the mere act of touching something on the ground suddenly discharge whatever mysterious force it was that was holding him in the air?

Mightn’t he be better off just being sensible at this point and stepping out of the air, back on to the ground for a moment or two?

If he did, would he ever be able to fly again?

The sensation, when he allowed himself to be aware of it, was so quietly ecstatic that he could not bear the thought of losing it, perhaps for ever. With this worry in mind he bobbed upwards a little again, just to try the feel of it, the surprising and effortless movement of it. He bobbed, he floated. He tried a little swoop.