Wace postponed saying much about himself, less from a wish to be secretive than from a realization of how appalling a task it would be. He did ask Tolk to warn Delp that the food from the cruiser, while essential to Earthlings, would kill a Diomedean.

“And why should I tell him that?” asked Tolk, with a grin that was quite humanly unpleasant.

“If you don’t, said Wace, “it may go hard with you when he learns that you did not.”

“True.” Tolk spoke to Delp. The officer made a quick response.

“He says you will not be harmed unless you yourselves make it necessary,” explained Tolk. “He says you are to learn his language so he can talk with you himself.”

“What was it now?” interrupted Van Rijn.

Wace told him. Van Rijn exploded. “What? What does he say? Stay here till — Death and wet liver! I tell that filthy toad—” He half rose to his feet. Delp’s wings rattled together. His teeth showed. The door was flung open and a pair of guards looked in. One of them carried a tomahawk, another had a wooden rake set with chips of flint.

Van Rijn clapped a hand to his gun. Delp’s voice crackled out. Tolk translated: “He says to be calm.”

After more parley, and with considerable effort and guesswork on Wace’s part: “He wishes you no harm, but he must think of his own people. You are something new. Perhaps you can help him, or perhaps you are so harmful that he dare not let you go. He must have time to find out. You will remove all your garments and implements, and leave them in his charge. You will be provided other clothing, since it appears you have no fur.”

When Wace had interpreted for Van Rijn, the merchant said, surprisingly at ease: “I think we have no choice just now. We can burn down many of them, ja. Maybe we can take the whole boat. But we cannot sail it all the way home by ourselves. If nothing else, we would starve en route, nie? Were I younger, yes, by good St. George, I would fight on general principles. Single-handed I would take him apart and play a xylophone on his ribs, and try to bluster his whole nation into helping me. But now I am too old and fat and tired. It is hard to be old, my boy—”

He wrinkled his sloping forehead and nodded in a wise fashion. “But, where there are enemies to bid against each other, that is where an honest trader has a chance to make a little bit profit!”

“First,” said Wace, “you must understand that the world is shaped like a ball.”

“Our philosophers have known it for a long time,” said Delp complacently. “Even barbarians like the Lannach’honai have an idea of the truth. After all, they cover thousands of obdisai every year, migrating. We’re not so mobile, but we had to work out an astronomy before we could navigate very far.”

Wace doubted that the Drak’honai could locate themselves with great precision. It was astonishing what their neolithic technology had achieved, not only in stone but in glass and ceramics; they even molded a few synthetic resins. They had telescopes, a sort of astrolabe, and navigational tables based on sun, stars, and the two small moons. However, compass and chronometer require iron, which simply did not exist in any noticeable quantity on Diomedes.

Automatically, he noted a rich potential market. The primitive Tyrlanians were avid for simple tools and weapons of metal, paying exorbitantly in the furs, gems, and pharmaceutically useful juices which made this planet worth the attention of the Polesotechnic League. The Drak’honai could use more sophisticated amenities, from clocks and slide rules to Diesel engines — and were able to meet proportionately higher prices.

He recollected where he was: the raft Gerunis, headquarters of the Chief Executive Officer of the Fleet; and that the amiable creature who sat on the upper deck and talked with him was actually his jailer.

How long had it been since the crash — fifteen Diomedean days? That would be more than a week, Terrestrial reckoning. Several per cent of the Earthside food was already eaten.

He had lashed himself into learning the Drak’ho tongue from his fellow-prisoner Tolk. It was fortunate that the League had, of necessity, long ago developed the principles by which instruction could be given in minimal time. When properly focused, a trained mind need only be told something once. Tolk himself used an almost identical system; he might never have seen metal, but the Herald was semantically sophisticated.

“Well, then,” said Wace, still haltingly and with gaps in his vocabulary, but adequately for his purposes, “do you know that this world-ball goes around the sun?”

“Quite a few of the philosophers believe that,” said Delp. “I’m a practical (?) one myself, and never cared much one way or another.”

“The motion of your world is unusual. In fact, in many ways this is a freak place. Your sun is cooler and redder than ours, so your home is colder. This sun has a mass… what do you say?… oh, call it a weight not much less than that of our own; and it is about the same distance. Therefore Diomedes, as we call your world, has a year only somewhat longer than our Earth’s. Seven hundred eighty-two Diomedean days, isn’t it? Diomedes has more than twice the diameter of Earth, but lacks the heavy materials found in most worlds. Therefore its gravity — hell! — therefore I only weigh about one-tenth more here than I would at home.”

“I don’t understand,” said Delp.

“Oh, never mind,” said Wace gloomily.

The planetographers were still puzzling about Diomedes. It didn’t fall into either of the standard types, the small hard ball like Earth or Mars, or the gas giant with a collapsed core like Jupiter or 61 Cygni C. It was intermediate, with a mass of 4.75 Earths; but its overall density was only half as much. This was due to the nearly total absence of all elements beyond calcium.

There was one sister freak, uninhabitable; the remaining planets were more or less normal giants, the sun a G8 dwarf not very different from other stars of that size and temperature. It was theorized that because of some improbable turbulence, or possibly an odd magnetic effect — a chance-created cosmic mass spectrograph — there had been no heavy elements in the local section of the primordial gas cloud… But why hadn’t there at least been a density-increasing molecular collapse at the center of Diomedes? Sheer mass-pressure ought to have produced degeneracy. The most plausible answer to that was, the minerals in the body of this world were not normal ones, being formed in the absence of such elements as chromium, manganese, iron, and nickel. Their crystal structure was apparently more stable than, say, olivine, the most important of the Earth materials condensed by pressure -

The devil with it!

“Never mind that weight stuff,” said Delp. “What’s so unusual about the motion of Ikt-hanis?” It was his name for this planet, and did not mean “earth” but — in a language where nouns were compared — could be translated “Oceanest,” and was feminine.

Wace needed time to reply; the technicalities outran his vocabulary.

It was merely that the axial tilt of Diomedes was almost ninety degrees, so that the poles were virtually in the ecliptic plane. But that fact, coupled with the cool ultra-violet-poor sun, had set the pattern of life.

At either pole, nearly half the year was spent in total night. The endless daylight of the other half did not really compensate; there were polar species, but they were unimpressive hibernators. Even at forty-five degrees latitude, a fourth of the year was darkness, in a winter grimmer than Earth had ever seen. That was as far north or south as any intelligent Diomedeans could live; the annual migration used up too much of their time and energy, and they fell into a stagnant struggle for existence on the paleolithic level.