I knew about this development because there was no let up in the communications with which diehard Thanatics continued to batter my patient AI interceptor. My presence at a martyrdom had become one of the few remaining prizes, avidly sought by aficionados in spite of the fact that my debate with Hellward Lucifer Nyxson had been long forgotten by everyone except the diehards themselves.

Although my patient silver took care of all my communication with the world outside, I could not resist the temptation to look over its shoulder occasionally as it parried the thrusts of the now-esoteric Thanaticists. I took due note, therefore, of a gradual shift in Thanaticist philosophy, which deemphasized brutal martyrdom in favor of long-term flirtations with danger. Such flirtations constantly exposed the cultists to the risk of death while keeping the skillful and the fortunate permanently in the game. Some were content to indulge in life-threatening sporting contests, often of a bizarre nature, but others preferred to cultivate a calculatedly unhealthy interest in disease.

Although a few twenty-eighth century Thanaticist martyrs had used diseases as a means of suicide the majority of “soft Thanatics” had always been content to pose as connoisseurs of exotic experience, in much the same spirit as my old acquaintance Ziru Majumdar. The continuation of their interests long after the initial moral panic had abated stimulated a small-scale but thriving black market in designer carcinogens and bioengineered pathogens.

Although the original agents of smallpox, cholera, bubonic plague, and syphilis were long extinct, the modern world abounded in clever genetic engineers who could synthesize similar viruses with very little effort. As the twenty-eighth century died and the twenty-ninth began, the less scrupulous among them found eager clients for a whole range of new and particularly horrid diseases. Those maladies that afflicted the mind as well as, or instead of, the body were particularly prized by the hard-core cognoscenti.

Recreational schizophrenia almost broke through to the mainstream of psychotropic usage at one point, but in the main the followers of the new fad steered well clear of casters and their hoverflies. As is the way of such things, however, the initial determination of the reformed Thanaticists to evade the lurid exposure that had typified the efforts of their predecessors soon became newsworthy in itself. The more evasive the residual adherents of the movement became, the greater became the motivation of their pursuers.

Inevitably, the new trend began to spread beyond the ranks of self-styled Thanaticists. As large numbers of people began to toy with the idea that disease was something that could be temporarily and interestingly indulged, without any real danger to life or subsequent health, the entire black market began to move slowly but steadily toward legitimacy and mass production. My silver began to find more and more instances in which arguments about death that I had popularized were quoted—usually without acknowledgement—with reference to recreational disease. It became fashionable to state as accepted common sense that whatever had ceased to be a dire necessity in human reckoning “naturally” became available as a perverse luxury, subject to purely aesthetic consideration.

None of this would have mattered much, but for one thing. Thanaticist martyrdom had not been infectious, except perhaps in a metaphorical sense, but recreational diseases were more versatile. Those that were mass produced were subjected to rigorous quality control, but those that had emerged from illicit sources while the client base had been small and exclusive had not been so carefully designed. It required only a few of the the people caught up in the fad to refuse to restrict themselves to noninfectious varieties for a serious social problem to develop.

The world had been free of devastating epidemics since the heyday of the chiasmalytic transformers that had precipitated the final phase of the Crash, but the renewed challenge to twenty-eighth-century medical technology was undoubtedly serious and was recognized as such.

Because of the threat to innocent parties who might be accidentally infected, the self-infliction of communicable diseases was quickly outlawed in many nations. Some governments were slow to act, but Canada was not among the them. Even in that ultracivilized land, however, the laws were too often broken.

FORTY-NINE

I would have remained aloof and apart from the recreational disease craze had I been able to, but my determination to pay no attention only made its adherents more anxious to attract my notice. It was inevitable that one of them would eventually succeed, and the one who did was Hadria Nuccoli.

Hadria Nuccoli was by no means the first Thanaticist to make her way to Cape Wolstenholme in person, or the first to attempt to gain entry to my home in spite of my refusal to invite her in. I daresay that almost all of her predecessors had been entirely harmless, and perhaps not entirely charmless, but I suppose it was only to be expected that the predator who combined the utmost determination with the utmost ingenuity would be the most dangerous of the lot.

Had I been living in an orthodox hometree even Hadria Nuccoli might have found housebreaking impossible. One advantage of an all-organic structure is that it is virtually seamless. In an emergency, all its doors and windows close reflexively and seal themselves with natural glues that bind as powerfully as the very best shamirs. Anyone who takes a blade or a degantzing solution to a living structure meets active resistance as well as raising an instant neural alarm. Stone, by contrast, is passive, and such alarms as can be fitted into it tend to be mere webs of copper wire and optical fiber. The kind of nanotech that can colonize and subvert such alarm systems is not readily available and it does not come cheap, but anyone who takes the trouble can render a mere household system impotent. Once that is done, the business of dissolving stone with gantzing agents designed for demolition becomes a mere formality: slow but sure.

The internal refurbishment of my living space had fitted all the inner walls with multilayered organics, but the solid frame put severe restrictions on the thickness of that tegument, and it yielded easily enough to simple brute force. Hadria Nuccoli came armed with drilling and cutting apparatus designed to deal with Titanian ice; the frail walls of my house had no chance against that kind of equipment.

Thus it was that she arrived in my bedroom, unannounced, at three o’clock on the morning of 16 January 2822.

I woke up in confusion, almost as disorientated as I had been on that dreadful night when the Genesishad flipped over—but on this occasion the confusion was more rapidly transformed into naked terror. When I caught sight of my uninvited visitor she was still carrying the cutting torch, and the mask she wore to protect her eyes from its furious fire made her look like some kind of alien monster.

I thought at first that the masked invader had come to use the torch on me, intent on slicing me from head to toe. My terror abated slightly when she tossed the tool aside and pulled the mask from her head—but only slightly.

I recognized her face, although I could not put a name to it immediately. Hadria Nuccoli had called several times to ask for admission, and my ever-dutiful silver had carefully made a record of her face and name. I had glimpsed it on several occasions, always incuriously.

Although she seemed less inhuman without the protective mask I knew that this was an enemy far more frightening than the scalding Coral Sea, because this was an active enemy, who meantto do me harm, and the intensity of the threat she posed was in no way lessened by the fact that she had claimed while begging me to meet her that she was a devout admirer of my work. Although she was still recognizable, she looked markedly different from the picture stored by the silver. Her skin now bore an almost mercuric luster, and she was already in the throes of a terrible fever.