The probe shuddered into the collar, which closed about it with a loud clang, reverberating through the Alabama Spirit's fuselage struts. Greg had seen those struts when he embarked, arranged in a geodesic grid, no wider than his little finger. The fibres were one of the superstrength monolattice composites extruded in microgee modules up at Zanthus or one of the other orbital industry parks. It was only after those kind of materials had been introduced that airships became a viable proposition once again.

Greg and Victor Tyo took a lift up to the Alabama Spirit's flight deck, a recessed circle in the middle of the upper fuselage. The other five members of the security team were waiting for them, along with a cluster of Event Horizon personnel who were beginning their three-month duty tour at Listoel.

A handling crew were loading a matt-black environment-stasis capsule into the cargo hold of the tilt-fan standing in the centre of the flight deck. Greg could see radiation-warning emblems all over the cylinder. He knew it contained a Merlin, a small multi-sensor space probe riding a nuclear ion-drive unit, designed to prospect the asteroids. Philip Evans had been launching them at a rate of one a month for the last three years. Greg had listened to him explaining the programme at his dinner party, clearly in his element, with an audience which hung on every word.

"Investing in the future," the old billionaire had said over after-dinner brandy. "I'll never see a penny back from them, but young Juliet here will. I envy her generation, you know. We're poised on the brink of great times. Our technology base is finally sophisticated enough to begin the real exploitation of space. My generation missed out on that; we were hopelessly stalled by the crises at the turn of the century—the Energy Crunch, the Credit Crash, the Warming, the disaster of the PSP. They all put paid to anything but the immediate. But now things are stabilising again, we can plan further ahead than next week, set long-range goals, the ones with real payoffs. Unlimited raw materials and energy, they're both out there waiting for her. Just think what can be achieved with such treasure. The wealth it'll create, spreading down to benefit even the humblest. Fantastic times."

Philip Evans's corporate strategy had Event Horizon flourishing into one of the leaders in deep-space industry. And the Merlins were an important part of his preliminary preparations; prospecting the Apollo Amor asteroids for him, a class of rocks well inside the main belt and the most easily accessible from Earth. The Merlins sent back a steady stream of securely coded information on their mineral and ore content.

When the consortium of German, American, and Japanese aerospace companies finally rolled their scramjet-powered spaceplane out, launch costs would take a quantum leap downwards. The single-stage launcher would open up a whole panoply of previously uneconomical operations. One of which was asteroid missions.