Only one match was required. The door slid shut just as the smoke and flames began to billow forth, and with a cheer and a yell the Flame Squad Faction began to celebrate.

Twenty-four floors below, Virgil and I were having a few slow ones in my suite. I had no time for partying because I was preparing for a long drive home to Atlanta. Virgil happened to be wandering the Plex that night, looking in on various people, and had paused for a while at my place. Things were pretty quiet– as they generally had been since John Wesley Fenrick had left– and except for the insistent and inevitable bass beat, the wing was peaceful.

The fire alarm rang just before midnight. We cursed fluently and looked out my door to see what was up. As faculty-in-residence I didn't have to scurry out for every bogus fire drill, but it seemed prudent to check for smoke. The smoke was heavy when we opened the door, and we smelled the filthy odor of burning plastic. The source of the flame was near my room: one of the elevators, which had automatically stopped and opened once the fire alarm was triggered. I put a rag over my mouth and headed for the fire hose down the hall. Meanwhile Virgil prepared to soak some towels in my sink.

Neither of us got any water. My fire hose valve just sucked air and howled.

"God Almighty," Virgil called through the smoke. "Somebody pulled a Big Flush." He came out and joined the people running for the fire stairs. "No 'vators during fires so Ill have to take the stairs. I've got to get the parallel pipe system working."

"The what?"

"Parallel pipes," said Virgil, skipping into the stairwell. "Hang on! Find a keg! The architects weren't totally stupid!" And he was gone down the stairs.

I locked my door in case of looting and went off in search of a keg. Naturally there was a superabundance that night, and with some help from the too-drunk-to-be-scared owners I hauled it to the lobby and began to pump clouds of generic light into the flaming Christmas tree.

Casimir Radon was in Sharon's lab, washing out a beaker. This was merely the first step of the Project Spike glassware procedure, which involved attack by two different alcohols and three different concentrated acid mixtures, but he was in no hurry. For him Christmas had started the day before. With Virgil's help he could get into this lab throughout the vacation, and that meant plenty of time to work on Project Spike, build the mass driver and suffer as he thought about Sarah.

He was annoyed but not exasperated when the water stopped flowing. There was a gulp in the tapstream, followed by a hefty KLONK as the faucet handle jerked itself from his grasp. The flow of water stopped, and an ominous gurgling, sucking noise came from the faucet, like an entire municipal water system flushing its last. He listened as the symphony of hydraulic sound effects grew and spread to the dozens of pipes lining the lab's ceiling, the knocks and gurgles and hisses weaving together as though the pipes were having a wild Christmas party of their own. But Casimir was tired, and fairly absentminded to boot, and he shrugged it off as yet another example of the infinite variety of building and design defects in the Plex. The distilled water tap still worked, so he used it. Despite the drudgery of the task and his problems with Sarah, Casimir wore a little smile on his long unshaven face. Project Spike had worked.

He had been sampling Cafeteria food for three weeks, and until tonight had come up with nothing. Turkey Quiche, Beef Pot Pies, Lefto Lasagne, Estonian Pasties, and even Deep-Fried Chicken Livers had drawn blanks, and Casimir had begun to wonder whether it was a waste of time. Then came Savory Meatloaf Night, an event which occurred every three weeks or so; despite the efforts of advanced minds such as Virgil's, no one had ever discerned any reliable pattern which might predict when this dish was to be served. Today, of course, the last of the semester, Savory Meatloaf Night had struck and Casimir had craftily smuggled a slice out in his sock (the Cafeteria exit guards could afford to take it easy on Savory Meatloaf Night).

Not more than fifteen minutes ago, as he had been irradiating the next batch of rat poison, the computer terminal had zipped into life with the results of the analysis: high levels of Carbon– 14! There were rats in the meatloaf! That was a triumph for Casimir. It seemed likely to be a secret triumph, though. Sarah would never understand why he was doing this. Casimir wasn't even sure he understood it himself. S. S. Krupp had funded his mass driver, so why should he wish to damage the university now? He suspected that Project Spike was simply a challenge, an opportunity to prove that he was clever and self-sufficient in a sea of idiocy. He had accomplished that, but as a political tactic it was still pretty dumb. Sarah would certainly think so.

Sarah had also thought it was dumb when he had decided to work in the lab all night instead of going to Fantasy Island Nite. She was right on that issue too, perhaps, but Casimir loathed parties of all sorts and would use any excuse to avoid one. Hence he was here on the bottom of the Plex, washing out rat-liver scum, while she was far above, dancing in the clown costume she had shown him– probably having a wonderful time as handsome Terrorists salivated on her.

He observed he was leaning on the counter staring at the wall as though it were a screen beaming him live coverage of Sarah at the party. Maybe he would leave now, retaining a lab coat as a costume, and go up and surprise Sarah.

Meanwhile water was squirting out of the wall, forcing its way through the cracks between the panels, running out from under the baseboards and trickling through the grommets in the sides of Casimir's tennis shoes. Abruptly brought back into the here and now, he looked around half-dazed and started unplugging things and moving them to higher ground. What the hell was happening? A broken pipe? He figured that if there was enough water pressure on the 31st floor to run a fire hose, the pressure down here must be phenomenal. This was going to be a hell of a mess.

Water was now trickling through old nail holes high on the wall. Casimir covered the computer terminal with plastic and then ran out to search for B-men. They were not here now, of course– probably spreading rat poison or celebrating some Crotobaltislavonian radish festival.

Across from Sharon's lab was a freight elevator closed off by a manually operated door. When he looked through its little window Casimir saw water falling down the shaft, and sparks spitting past. He got insulated gloves from the lab and hauled the door open. Several gallons of pent-up water rushed past his ankles and fell into the blackness. From below rose the-harsh wet odor of the sewers.

The sparks issued from the electrical control box on the shaft wall. Once Casimir was sure there was no danger of fire or electrocution he left, leaving the doors open so that water could drain out of this bottom level of the Plex.

Oh, God. The rat poison. It was only supposed to stay in the radiation source for a minute at a time! Casimir had put it in an hour ago, then simply forgotten about it once the results of the analysis had come in. The damn stuff must be glowing in the dark. He sloshed back into the lab.

Water poured and squirted from the walls and ceiling everywhere he looked. He shielded his face from spray and walked through a wall of water toward the neutron source, a garbage can full of paraffin with the plutonium button at its center. Stopping to listen, he sensed that the slow ticking noise which had been coming from one wall had sped up and was growing louder. He stood petrified as it grew into a rumble, then a groan. then a scream– and the wall crashed open and a torrent rushed through the lab. An adjacent storage room had filled with water from a large broken pipe, and Casimir was now knocked to the floor by a torrent of Fiberglass panels, aluminum studs, and janitorial supplies. He rolled just in time to see the neutron source, buoyed on the rush of water, bob through the doorway and across the hall.