Blow the Man Down

by Charles L. Fontenay

"I'm trying to impress you with the seriousness of this thing, because there's something we can do about it if you'll let us," said Carrel patiently. "All it takes is a thin metal shield at a proper distance from the ship, and we can build that out of the cargo we're carrying."

"The only metal aboard is lithium," demurred Albrekt sternly. "That lithium's slated for nuclear reactors and weapons and it's going to reach Rhea intact!"

"We're not going to burn up any of your precious lithium!" exploded Carrel. "All I ask is to use half of it to build a shield. They can use the damn stuff out of the shield as easy as out of cargo bars. It'll all be there, just the same."

Albrekt hesitated. It was quite conceivable that his superiors had not bothered about such a trifle as his slow death from radiation. They would have plotted the most effective orbit for their purposes, and if the By Jove! didn't happen to be shielded—well, casualties had to be expected in any military operation.

"You have my permission to build the shield," he said stiffly at last, "under my strict supervision, of course."

"That's all right with me," consented Carrel with a sigh of relief. "And I give you my word as a space captain, Albrekt, nobody aboard the By Jove! will lift a hand against you while it's being built."

Despite Carrel's reassurance, Albrekt, wary of some stratagem, held to his determination to oversee every step of the shield construction, with gun handy.

Fifty tons of such a light metal as lithium is a pretty large volume of the stuff. Albrekt assumed that Carrel's shield was to be a square or disc of the metal, rather thick to absorb the radiation, which would be interposed between the By Jove! and Jupiter. When work began, after several days of planning, it became apparent that the construction task was something more than cutting out and fastening together chunks of lithium.

Instead of working inside the ship, the crew moved a furnace to the outside of the cargo hull and anchored it down. The Earthmen wore spacesuits, of course, but Qoqol did not, as Martians do not breathe, but extract oxygen from solid matter and store enough of it to last several hours at a time.

To Albrekt's surprise, they next hauled out some of the big packages which were plastic domes for use on Titan. At extra-terrestrial bases, these hemispherical domes were inflated to form huge air bubbles in which humans could live.