Day had come to this side of the Band, although the evening terminator was visibly racing across the planet, and the Band-on-Band was fully visible.

It was a three-thousand mile wide equatorial strip of land that girdled the fat world like a corset. Even up here Band appeared to revolve so fast for a planet that an imaginative observer half-expected to hear a background hum. It bulged. The Band was a grey-brown strip of mountain, one continuous twenty-five thousand mile range, edged by two ribbons of blue-green grassland. They were bounded by two strips of darker sea, which reached up to the squashed poles and the white ice.

'It's explainable in terms of continental drift, high rotation and ancient vulcanism, boss,' said Isaac, looking up from the autochef. 'Or didn't you want to know?'

'It must be a hell of a place to live on,' said Dom, 'what with the sun scooting across the sky and all.'

'The sundogs like it.'

Dom nodded. It was their world. They had evolved on Eggplant, but six hundred years ago had accepted a cash grant and the deeds of Band in exchange for vacant possession. Sundogs were nice, but dangerous to live with in the laying season. So far Dom's telescopic survey had revealed nothing but herds of sundog pups which could be seen from space as large dots at one end of thousand-mile long swathes grazed through Band's ubiquitous sweetgrass.

There were two narrow strips of marshland, and rivers in the mountains. There was one small lake. There was absolutely no sign of any habitation.

Dom had checked on the world. The Creapii-backed Wildlife Preservation Fund ran a small robotic observation station on the planet, as part of a treaty which also forbade unauthorized landings. The Fund headquarters said that there had been suggestions that a being known as Chatogaster was a pre-Sundog inhabitant, although the planet had a meagre selection of vegetation and no animal life at all. No, no signs of sapience had been exhibited by the vegetation. Band had no higher life of its own, which was why the sundogs selected it. Chatogaster was considered to be a sundog legend, or a planetary spirit. No, there had been no recent landings. Very rarely a ship had to put in under the emergency clause, but the robot station was equipped to handle that. Thank you for your inquiry.

Such sundogs as Dom had been able to raise had refused to discuss the subject. There were a lot of them orbiting the planet.

As Band spun below the ship they came yet again into radio range of Drunk With Infinity. The set crackled and Joan spoke.

'Still not coming down, Dom? Be reasonable. I don't think you are being astute about this at all.'

Her voice made a background as Dom unshipped the telescope again and peered down at the planet.

Seen from several thousand miles up the Drunk was a squat blob at one end of a long shadow which, Dom swore, shortened as he watched it. It stood in the middle of the rolling continental plain of grass, midway between mountains and sea and only ten miles or so from the solitary lake. Here and there around the ship the yellow light glinted off metal. Robots.

'Anyway, you've been up there for hours. You will have to land soon for air, and I happen to know that by now you can't have enough fuel to take off again. Be reasonable. I am not your enemy. Please come back to Widdershins: you don't know the danger you're in.'

Dom looked across at the fuel telltale for the hundredth time. She was quite right.

In desperation he turned to the One Jump'splanetary guide, which he had found in its library amongst some suggestive books on economics.

'It is a sparsely-furnished world, though beautiful from space,' he read. 'It is the nearest thing a rock world can become to looking like a gas giant. Band was discovered and claimed by the Creapii in B.S. 5,356, but is leased by the sundogs for the purpose of raising their pups. Unauthorized landing is banned - the planet's name is hence very apt - except in cases of emergency. Even then, for obvious reasons, landings should not be made in the late orbital spring.'

Obvious reasons, thought Dom. He was prepared to bet that it was late spring down there. But Hrsh-Hgn was down there too, and so was a non-existent being called Chatogaster.

'Well,' he said. This is what we'll do...'

'They are landing, ma'am.'

Joan flounced across the cabin and swept the robot from the control seat.

The screen showed a thin line raking over the planet. It arched down and presently the vision screens showed the One Jump, skimming low over the plains with an impressive show of stunt flying.

'A gesture of defiance. A Sabalos to the core, ' she said proudly. 'There's no shame in giving in when you've no alternative whatsoever.'

The small ship swung round and landed a mile away from the Drunk, scattering a herd of giant sundog pups which trundled off clumsily, keening.

'Eight, Three, go off and escort him in.'

Two of the robots outside broke away and lurched off through the knee-high grass.

'That's settled, then,' said Joan. She swung round in her seat and sent down to the butler's pantry for a jug of bitter Pineal wine. The only other occupant of the cabin gazed at her mournfully.

There were three sexes on Phnobis, but equally there were two other distinctions among phnobes: those who lived on Phnobis, and those who did not. The two were not interchangeable. There were no return tickets. Phnobic religion was adamant that the universe ended at the unbroken cloud layer, and returning phnobes were bad for business - hence, by a roundabout route, the big, artificially-overcast burukus on every other world.

'It appears that I won't have to send you back after all.'

'For thiss relief much thankss.' Hrsh-Hgn grimaced and massaged his long ribcage. 'Your robots are ungentle, madam.'

'They used little more than the necessary minimum of force, I'm sure.' She leaned forward. 'Tell me - purely out of interest - what precisely happens to returning phnobes?'

'The shipss have to land in a ssacred area. Alighting phnobes are dispatched with a knife, it is ssaid. It iss not reasonable. I send all my salary to the sacred coffers, ass you know. Ah, well. As the ssaying runs, Frskss Shhs Ghs Ghnng-ghngss.'

Joan raised her eyebrows. 'Indeed? Hrskss-gng, my dear fellow, and many of them.'

Hrsh-Hgn blushed grey. 'Your pardon, madam, I did not realize you sspoke . . . ' He looked at her with new respect.

'I don't. But there are some words one learns on even passing acquaintance with a language. To an Earth-human woman it's a compliment, actually, if somewhat direct.'

She turned back to the screen.

Robots Eight and Three plodded up to the ship, from which came the strains of the Widdershine ballad Do You Take Me For a Silly? played inexpertly on a thumb-organ. A puppy lumbered away as they approached.

The hatch was open. Three stepped in.

Isaac regarded him amiably.

'I perceive the human is not here,' said Three.

'That is correct,' said Isaac.

Three eyed him warily. Finally he intoned: 'I am a Class Three robot. I ask you to remain here while I seek instruction.'

'I, on the other hand, am a Class Five robot, with additional Man-Friday subcircuitry,' said Isaac pleasantly.

Three's left eyeball twitched. Isaac had picked up a spanner.

'I perceive a possibility of an immediate chronological sequence of events which includes a violence,' said Three. He stepped back, 'I express preference for a chronological sequence of events which precludes a violence.'

Eight poked his head round the hatchway and added, 'I too express a preference for a chronological sequence of events which precludes a violence.'