The radiation was therefore coming up through their feet, mostly gamma rays scattering out of the heavy metals. Maya felt an impulse to keep her knees together. People floated in place, or put on velcro slippers to walk over the floor. They talked in low voices, instinctively finding their next-door neighbors, their working partners, their friends. Conversations were subdued, as if a cocktail party had been told that the hors d’oeuvres had been tainted.

John Boone rip-ripped his way to the computer terminals at the fore end of the room, where Arkady and Alex were monitoring the ship. He punched in a command, and the exterior radiation data were suddenly displayed on the room’s biggest screen. “Let’s see how much is hitting the ship,” he said brightly.

Groans. “Must we?” exclaimed Ursula.

“We might as well know,” John said. “And I want to see how well this shelter works. The one on the Rust Eagle was about as strong as the bib you wear at the dentist’s.”

Maya smiled. It was a reminder, rare from John, that he had been exposed to much more radiation than any of the rest of them— about 160 rem over the course of his life, as he explained now in response to someone’s question. On Earth one caught a fifth of a roentgen equivalent man per year, and orbiting Earth, still inside the protection of the Earth’s magnetosphere, one took around thirty-five per year. So John had taken a lot of heat, and somehow that gave him the right, now, to screen the exterior data if he wanted to.

Those who were interested— about sixty people— clumped behind him to watch the screen. The rest relocated at the far end of the tank with the people worrying about motion sickness, a group that definitely didn’t want to know how much radiation they were taking. Just the thought was enough to send some of them into the heads.

Then the full force of the flare struck. The exterior radiation count shifted to well above the solar wind’s usual level, and then soared in a sudden rush. An indrawn hiss came from several observers at once, and there were some shocked exclamations.