“Are you ready to tell me what we’re doing?” I asked, cautiously.
“No,” he said.
Pure Jack style. Just no, negative, unh-uh. He took the Iridium cell phone out of my pack and laid it on the floor after checking for probably the third time that it was set to vibrate and not to ring. “One at a time, and very slowly, start handing me those bricks,” he said, pointing to my pack.
I took one out. It felt slightly powdery, like a crumbling bar of soap and it came wrapped in a thin sheet of plastic, like Saran wrap. I left a depression in the brick where I held it with my thumb but Jack didn’t seem to mind. He stripped off the plastic and then picked up one of the compressed gas cylinders and wrapped the putty-like substance around the cylinder, smoothing it quite carefully. As he worked with it the stuff lost its powdery consistency and became rubbery and malleable.
I had seen the stuff before. It’s common enough and cheap enough that it regularly shows up in the arsenals of most developing countries. Not to mention terrorist training camps. “That’s semtex, right?”
Jack glared at me.
Foolish me, I thought he was angry because I had used a European name for it. “Sorry. C-4. Plastic explosive. You’re going to blow Gary up.”
“Something like that.” He returned to his work, fashioning a charge around the end of a second cylinder.
I had to know. I picked up one of the cylinders. It had a faded sticker near the nozzle showing two symbols. One was a triangle containing a broken test tube. Cartoon fumes rose from the point of breakage. The other symbol was a skull and crossbones.
The foil packets contained two piece atropine auto-injectors. First aid in the event of a chemical weapons spill. “What is it in those cylinders, sarin?” I asked, very, very calmly.
“VX,” he said, with something of a sniff. As if I had offended his professional pride. “It’s got an LD50 of ten milligrams, either inhaled or cutaneous.”
A lethal dose of one thirty thousandth of an ounce. One little droplet is all it takes. I knew a hell of a lot more about LD50s and cutaneous versus ocular exposure rates than I had ever wanted to. This stuff was my worst nightmare back when I was working as a weapons inspector. It would have been everybody’s worst nightmare if anybody had ever been crazy enough to use it. Even Saddam Hussein, when he tried to wipe out the Kurds, had used less dangerous nerve agents than VX. The British invented it. They traded it to the US in exchange for the plans for the atomic bomb. It was that lethal.
“The military tried everything they had when the Epidemic broke out,” Jack told me. “There was a rumor they were going to nuke Manhattan but I guess they couldn’t make it happen in time. Theydid try gassing Spanish Harlem. This is all that’s left of the assets they brought down for that project.”
“They used nerve gas against the living dead?” I asked, incredulous. I suppose if I was put in the same position I might have grasped at straws, too. “Did it… did it work?”
“It should have. A dead guy is pretty much just a nervous system that can walk around and VX is a nerve agent. It short-circuits the acetylcholine cycle. It should have worked.”
Obviously it hadn’t. If anything the military had probably wiped out any survivors holed up in the neighborhood while leaving the undead untouched. The things we do with the best of intentions… I shook my head. “Then you aren’t here to kill Gary at all.”