end of the corridor, Singer stopped at a gray metal door, its edges curved to fit the doorframe and sealed with thick black rubber.
To the right was a small mechanical box. Bending over, Singer spoke his name into the device. A green light came on above the door, and a tone sounded.
âVoice recognition,â said Singer, opening the door. âItâs not as good as hand-geometry readers or retinal scanners, but those donât work through biosuits. And this one, at least, canât be fooled by a tape recorder. Youâll be coded this afternoon, as part of your entrance interview.â
They moved into a large room, sparsely decorated with modern furniture. Along one wall was a series of metal lockers. On the far side stood another steel door, polished to a high gloss, marked with a bright yellow-and-red symbol. EXTREME BIOHAZARD , read a legend above the frame.
âThis is the ready room,â Singer said. âThe bluesuits are in those lockers.â
He moved toward one of the lockers, then paused. Suddenly he turned toward Carson. âTell you what. Why donât I get someone who really knows the place to show you around?â
He pressed a button on the locker. There was a hiss as the metal door slid up, revealing a bulky blue rubber suit, carefully packed into a molded container that resembled a small coffin.
âYouâve never entered a BSL-4 facility, right?â Singer asked. âThen listen closely. Level-5 is a lot like Level-4, only more so. Most people wear scrub under the full-body suits for comfort, but itâs not a requirement. If you wear your street clothes, all pens, pencils, watches, knives must come out of the pockets. Anything that could puncture the suit.â Carson quickly turned his pockets inside out.
âNo long fingernails?â Singer asked.
Carson looked at his hands. âNope.â
âThatâs good. Iâm always worrying mine down to the quick, so I donât have a problem.â He laughed. âYouâll find a pair of rubber gloves in that lower left compartment. No rings, right? Good. Youâll have to take off your boots and put on those slippers. And no long toenails. Youâll find toenail clippers in one of the locker compartments, if you need them.â
Carson removed his boots.
âNow step into the suit, right leg first, then left leg, and draw it up. But not all the way. Leave the visor open for now so we can talk more easily.â
Carson fumbled with the bulky suit, drawing it over his clothes with difficulty.
âThis thing weighs a ton,â he said.
âItâs fully pressurized. See that metal valve at your waist? Youâll be on oxygen the entire time youâre inside. Youâll be shown how to move from station to station. But the suit itself contains ten minutesâ worth of air, in case of emergencies.â He walked toward an intercom unit, pressed a series of buttons. âRosalind?â he asked.
There was a short pause. âWhat?â came the buzzing response.
âCould I trouble you to give our new scientist, Guy Carson, a tour of BSL-5?â
There was a longer silence.
âIâm in the middle of something,â the voice came back.
âItâll just take a few minutes.â
âAw, for Chrissakes.â The voice cut off immediately.
Singer turned to Carson. âThatâs Rosalind Brandon-Smith. Sheâs a little eccentric, I guess you could say.â He leaned toward Carsonâs open visor conspiratorially. âActually, sheâs extremely rude, but donât pay any attention. She was instrumental in developing our artificial blood. Now sheâs wrapping up her part of the new project. She did a lot of work with Frank Burt, and they were pretty close, so she may not be too friendly to his replacement. Youâll be meeting her inside, no reason for her to go through decontam twice.â
âWhoâs Frank Burt?â Carson