The Long War

as if she had been dropped even further into the past – as if she were trying to use stone blades and lumps of ochre to build a radio telescope. Still, she persevered, for there was no choice.
    Despite her unsatisfactory education, Roberta Golding saw the world clearly. And she saw people clearly, more clearly than they could see themselves. Humanity, she once said in an answer in a philosophy exam taken when she was eleven years old, was nothing but the thin residue left when you subtracted the baffled chimp. Responses like that made her a promising scholar, and in Happy Landings, where there were many bright children like her, she had never had any trouble getting picked for the netball team. But here her lack of response, her habit of speaking in brief lectures, her corrections of simple errors, didn’t make the crew warm to her. Not even the forgiving Yue-Sai.
    The airships settled over a suitable location, and in a methodical fashion sent up sounding-rockets and weather balloons to gain a broader picture of this world. Then Yue-Sai took Roberta down to the elevator deck, they checked over their equipment one last time, and descended to the surface of Earth East 2,201,749.
    They were standing at the fringe of a forest, close to a sprawling river estuary. From the cover of the trees Roberta was able to look out over the open plain of the estuary and the wetlands that fringed it, to a sharp ocean horizon. She was distracted by huge flying creatures that swept low over the ocean water, a flock of them, each with filmy wings outspread – the largest flyers Roberta had ever seen. Something like pterosaurs? Something like bats? Something evolved from a different root altogether? Silhouetted in the sparkling light off the sea they swooped lower, graceful necks dipping, and huge fish, or fish-like creatures, were plucked from the water and gulped down into long beaks.
    This was a warm, watery world, a world of high sea levels, of shallow oceans that washed far into the hearts of the continents. A world that could support such fantastic visions. And a world, Roberta understood from her studies, with dangers of its own, unknown on drier Earths like the Datum: not least exotic climatic catastrophes, such as the hypercane already brewing out on the local copy of the Pacific Ocean . . .
    Shadows shifted across the forest.
    Yue-Sai waved her hand. Roberta made sure the speaker feed from the monitor on her shoulder was off, and stood stock still and silent in the cover of the trees.
    Immense forms moved through the forest, heading for the estuary and the fresh water. Roberta glimpsed compact, muscular bodies, on all fours but with massively powerful hind legs – they were something like kangaroos, she thought, but beefed-up – and with their ears flaring into tremendous coloured crests, stiffened with cartilage. There were several of these animals, the adults taller at the shoulder than Roberta, calves running alongside, and one infant being carried in a pouch at its mother’s belly.
    Silent as a cat, Yue-Sai slid through the forest, tracking the herd.
    Roberta followed as best she could. She wasn’t as quiet as Yue-Sai, but the whirring lenses of the shoulder monitor pack were noisier than her footsteps, and she took some pride in that.
    They came to the edge of the forest, by a braid of fresh water. Across the estuary’s damp plain huge flocks of birds, or bird-like creatures, strutted, squabbled and fed. With marsh flowers in abundance it was a mass of colour, under a deep blue sky. Roberta thought she saw the characteristic ridged backs of crocodilians sliding through the deeper water.
    And, by the water’s edge, the creatures of the forest came to drink.
    The most obvious, the most spectacular, were those big bulky roos with their colourful sail-like ear-crests. The creatures were so huge and heavy, they moved so slowly and patiently, they looked as if they were carved from living rock. And they were so massive that those great hind legs must surely be evolved for kicking, not for jumping like a Datum kangaroo. But their ear-crests were oddly fragile-looking, almost translucent in the light of the sun, evidently just skin and tissue stretched over frames of cartilage. The crests were alight with brightly coloured patterns that shifted and dissolved as Roberta watched.
    Yue-Sai murmured, ‘Are you getting this, Captain Chen, Mr. Montecute?’
    ‘Yes, Lieutenant,’ replied the Captain in their ears. ‘Try to