Hunt sat on the edge of his bunk inside a Spartan room in number-three barrack block of Ganymede Main Base and methodically transferred the contents of his kit bag into the aluminum locker beside him. The air-extractor grille above the door was noisy. The air drawn in through the vents set into the lower walls was warm, and tainted with the smell of engine oil. The steel floor plates vibrated to the hum of heavy machinery somewhere below. Propped up against a pillow on the bunk opposite, Danchekker was browsing through a folder full of facsimiled notes and color illustrations and chattering excitedly like a schoolboy on Christmas Eve.

"Just think of it, Vic, another day and we'll be there. Animals that actually walked the Earth twenty-five million years ago! Any biologist would give his right arm for an experience like this." He held up the folder. "Look at that. I do believe it to be a perfectly preserved example of Trilophodon—a four-tusked Miocene mammoth over fifteen feet high. Can you imagine anything more exciting than that?"

Hunt scowled sourly across the room at the collection of pin-ups adorning the far wall, bequeathed by an earlier UNSA occupant.

"Frankly, yes," he muttered. "But equipped rather differently than a bloody Trilophodon."

"Eh? What's that you said?" Danchekker blinked uncomprehendingly through his spectacles. Hunt reached for his cigarette case.

"It doesn't matter, Chris," he sighed.

Chapter Twenty-Two

The flight northward to Pithead lasted just under two hours. On arrival, the group from Earth assembled in the officers' mess of the control building for coffee, during which scientists from Jupiter Four updated them on Ganymean matters.

The Ganymean ship had almost certainly been destined for a large-scale, long-range voyage and not for anything like a limited exploratory expedition. Several hundred Ganymeans had died with their ship. The quantity and variety of stores, materials, equipment, and livestock that they had taken with them indicated that wherever they had been bound, they had meant to stay.

Everything about the ship, especially its instrumentation and control systems, revealed a very advanced stage of scientific knowledge. Most of the electronics were still a mystery, and some of the special-purpose components were unlike anything the UNSA engineers had ever seen. Ganymean computers were built using a mass-integration technology in which millions of components were diffused, layer upon layer, into a single monolithic silicon block. The heat dissipated inside was removed by electronic cooling networks interwoven with the functional circuitry. In some examples, believed to form parts of the navigation system, component packing densities approached that of the human brain. A physicist held up a slab of what appeared to be silicon, about the size of a large dictionary; in terms of raw processing power, he claimed, it was capable of outperforming all the computers in the Navcomms Headquarters building put together.