“Such notions would—how do you phrase it?—‘fly in the face’ of observed reality,” said Ponter. He looked over at Mary. “Forgive me, Mare. I know you believe in these things, but…”

  Mary nodded. “But you don’t.”

  “Well,” continued Reuben, “Persinger’s group believes they’ve found the neurological reason why Homo sapiens have religious beliefs. So, my friend Veronica wants to see if she can induce a religious experience in Neanderthals. If she can, then they’ve got some ’splainin’ to do, since you guys don’t have religious thoughts. But Veronica suspects that the technique that works on us won’t work on you. She thinks your brains must be wired differently on some fundamental level.”

  “A fascinating premise,” said Ponter. “Is there any danger in the procedure?”

  Reuben shook his head. “None at all. In fact, I had to certify that.” He smiled. “The big problem with most psychological studies is that all the guinea pigs are psych under-grads—people who have self-selected to study psychology. We know an enormous amount about the brains of such people, who may or may not be typical, but very little about the brains of the general population. I first met Veronica last year; she approached me about getting some of the miners to be test subjects—a completely different demographic than she usually gets to work with.” Reuben was the mine-site physician at Inco’s Creighton nickel mine, where the Sudbury Neutrino Observatory was located. “She was offering the miners a few bucks, but Inco wanted me to okay the procedure before letting them do it. I read up on Persinger’s work, looked at Veronica’s modifications, and underwent the procedure myself. The magnetic fields are minuscule compared to those in MRIs, and I routinely recommend those for my patients. It’s completely safe.”

  “So she will pay me a few bucks?” asked Ponter.

  Reuben looked shocked.

  “Hey, a fellow has to eat,” said Ponter. But he couldn’t keep up the facade; a giant grin crossed his face. “No, no, you are right, Reuben, I do not care about compensation.” He looked at Mary. “What I do care about is understanding this aspect of you, Mare—this thing that is so important a part of your life but that I find incomprehensible.”

  “If you want to learn more about my religion, come to Mass with me,” said Mary.

  “Gladly,” said Ponter. “But I would also like to meet this friend of Reuben.”

  “We have to get over to your world,” said Mary, sounding a bit petulant. “Two will soon be One.”

  Ponter nodded. “Oh, indeed—and we don’t want to miss a moment of that.” He looked at Reuben. “Your friend would need to make time for us tomorrow. Can she do that?”

  “I’ll give her a call right now,” said Reuben, getting up. “I’m sure she’ll move heaven and Earth to accommodate you.”

  Chapter Six

  “ Jack Kennedy was right: it was time then for us to take longer strides. And it’s that time again. For the greatest strength we Homo sapiens have always had, since the dawn of our consciousness 40,000 years ago, is our desire to go places, to make journeys, to see what’s beyond the next hill, to expand our territories, and—if I may borrow a phrase coined just four years after JFK’s speech—to boldly go where no man has gone before…”

  Ponter and Mary had spent the night at Reuben’s place, sleeping together on the foldout couch. Early the next morning, they headed over to the small campus of Laurentian University and found room C002B, one of the labs used by the tiny Neuroscience Research Group.

  Veronica Shannon turned out to be a skinny white woman in her late twenties with red hair and a nose that until she’d met female Neanderthals, Mary would have called large. She was wearing a white lab coat. “Thank you for coming, Dr. Boddit,” she said, pumping Ponter’s hand. “Thank you so much for coming.”

  He smiled. “You may call me Ponter. And it is my pleasure. I am intrigued by your research.”

  “And Mary—may I call you Mary?—it is such a treat to meet you!” She shook Mary’s hand. “I was so sorry I didn’t have a chance when you were on the campus earlier, but I was back home in Halifax for the summer.” She smiled, then looked away, seeming almost embarrassed to go on. “You’re a bit of a hero of mine,” she said.

  Mary blinked. “Me?”

  “There aren’t that many female Canadian scientists who really make it big, but you have. Even before Ponter came along, you’d really put us on the map. The work you did with ancient DNA! First-rate! Absolutely first-rate! Who says that Canadian women can’t take the world by storm?”

  “Um, thank you.”

  “You’ve been quite the role model for me. You, Julie Payette, Roberta Bondar…”

  Mary had never thought of herself in that august company—Payette and Bondar were Canadian astronauts. But, then again, she had gotten to another world before either of them…

  “Thank you,” said Mary again. “Umm, we really don’t have that much time…”

  Veronica blushed a bit. “Sorry; you’re right. Let me explain the procedure. The work I’m doing is based on research begun here at Laurentian in the 1990s by Michael Persinger. I can’t take credit for the fundamental idea—but science is all about replication, and my job is verifying his findings.”

  Mary looked around the lab, which had the usual university mix of shiny new equipment, battered old equipment, and beat-up wooden furniture. Veronica went on. “Now, Persinger had about an 80 percent success rate. My equipment is second-generation, a modification of what he developed, and I’m getting about 94 percent.”

  “It seems a bit of a coincidence that this research is going on so close to the portal between worlds,” said Mary.

  But Veronica shook her head. “Oh, no, Mary, not really! We’re all here because of the same thing—the nickel that was deposited when that asteroid hit the Earth here two billion years ago. See, originally Persinger was interested in the UFO phenomenon: how come flying saucers are most frequently seen by guys named Clete and Bubba out in the back forty.”

  “Well,” said Mary, “you can get beer anywhere.”

  Veronica laughed more than even Mary thought the joke deserved. “That’s true—but Persinger decided to take the question at face value. Not that he, or I, believe in flying saucers, but there is a real psychological phenomenon that makes people think they’ve seen such things, and Persinger got to wondering why that phenomenon would be triggered outdoors, especially in isolated locations. Laurentian does a lot of mining studies, of course, and when Persinger started looking for possible causes for the out-in-the-countryside UFO experience, the mining engineers here suggested piezoelectric discharges.”

  Ponter’s Companion, Hak, had bleeped a couple of times, indicating he hadn’t understood some words, but neither Ponter nor Mary had interrupted Veronica, who was clearly on a roll. Apparently, though, she didn’t expect Ponter to know the term “piezoelectric,” and so explained it of her own accord: “Piezoelectricity is the generation of electricity in rock crystals that are being deformed or are otherwise under stress. You get piezoelectric discharges, for instance, when a pickup truck drives over rocky ground out in the country—the classic UFO-sighting scenario. Persinger managed to reliably replicate that sort of electromagnetic effect in the lab, and lo and behold, he could make just about anyone think they’d seen an alien.”

  “An alien?” repeated Mary. “But you’d mentioned God.”

  “To-may-to, to-mah-to,” said Veronica, grinning a very toothy grin. “It’s all the same thing.”

  “How?”

  Veronica pulled a book off her shelf: Why God Won’t Go Away: The Biological Basis for Belief . “Newberg and d’Aquili, the authors of this book, did brain scans of eight Tibetan Buddhists meditating and of a bunch of Franciscan nuns praying. Naturally, those people showed increased activity in the areas of the brain associated with concentration. But they also showed decreased activity in the parietal lobe.” She tapped the side of her skull, indicating the lobe’s location. “The left-hemisphere part of
the parietal lobe helps define your own body image, while the right-hemisphere part helps orient you in three-dimensional space. So, collectively, those two parts are responsible for defining the boundary between where your body ends and things outside your body begin. With the parietal lobe taking a coffee break, the natural feeling is exactly what the monks report: a loss of the sense of self, and a feeling of being at one with the universe.”

  Mary nodded. “I saw the cover story about that in Time .”

  Veronica politely shook her head. “It was Newsweek , actually. Anyway, their work combines with Persinger’s and mine. They found that the limbic system lights up during religious experiences—and it’s the limbic system that tags things as significant. You can show a parent a hundred babies, but they’ll only react profoundly to the sight of their own baby. That’s because the limbic system has tagged that particular visual input as important. Well, with the limbic system afire during religious experiences, the whole thing gets tagged as overwhelmingly important.

  “That’s why religious experiences never sound good in the telling: it’s just like me telling you my boyfriend is the best-looking guy in the world, and you going, yeah, sure. So I open my purse and show you a picture of him, and I think you’ll be convinced, right? You’ll go, wow, he is a hunk. But if I did that, you won’t have that response. He’s handsome beyond compare to me because my limbic system has tagged his appearance as having special significance for me. But there’s no way I can express that to you via words or pictures. Same thing with religious experiences: no matter how much someone tells you about their own one, about how life-changing and momentous it was, you just can’t get that same feeling about it.”

  Ponter had clearly been listening intently, alternately frowning his wide mouth and rolling his continuous blond eyebrow up his doubly arched browridge. “And you believe,” he said, “that this thing your people have and mine do not—this religion—is tied to the functioning of your brains?”

  “Just so!” said Veronica. “A combination of parietal-lobe and limbic-system activity. Look at what happens in Alzheimer’s patients: people who’ve been devout their whole lives often lose interest in religion when they come down with Alzheimer’s disease. Well, one of the first things Alzheimer’s does is cripple the limbic system.”

  She paused, then continued. “It’s long been known that so-called religious experiences are tied to brain chemistry, since hallucinogenic drugs can induce them—which is why such drugs form the basis of ritual in so many tribal cultures. And we’ve long known that the limbic system might be one of the keys: some epileptics with seizures restricted to the limbic system have incredibly profound religious experiences. For instance, Dostoevsky was an epileptic, and he wrote about ‘touching God’ during his seizures. Saint Paul, Joan of Arc, Saint Theresa of Avila, and Emanuel Sweden-borg were all probably epileptics, too.”

  Ponter was leaning now against the corner of a filing cabinet, unself-consciously shimmying left and right, scratching his back. “Those are the names of people?” he asked.

  Veronica was briefly taken aback, then nodded. “Dead people. Famous religious people of the past.”

  Mary took pity on Ponter at this point and explained “epilepsy” for him. Ponter had never heard of anything like it, and Mary wondered—with the shiver she got whenever she contemplated it—whether epileptic genes were yet another thing the Neanderthals had dispassionately purged from their gene pool.

  “But even if you’re not epileptic,” Veronica said, “you can get that effect. Ritual dancing, chanting, and so on have been independently developed over and over by religions around the globe. Why? Because the deliberate, repetitive, stylized body movements during such ceremonies make the limbic system tag them as being of special significance.”

  “This is all well and good,” said Mary, “but—”

  “But you’re wondering what it has to do with the price of tea in China, right?”

  Ponter looked completely baffled, and Mary smiled. “Just a metaphor,” she said. “It means, ‘With the topic at hand.’ ”

  “And the answer,” said Veronica, “is that we now understand well enough how the brain creates religious experiences to reliably reproduce them in the lab…at least in Homo sapiens . But what I’m dying to find out is whether I can induce one in Ponter.”

  “My own curiosity is not fatal,” said Ponter, smiling, “but nonetheless I would like it assuaged.”

  Veronica looked at her watch again, then frowned. “My grad student hasn’t shown up yet, unfortunately, and the equipment is quite delicate—it needs to be recalibrated daily. Mary, I don’t suppose you’d be willing…?”

  Mary felt her spine stiffen. “Willing to what? ”

  “To take the first run; obviously, I need to know that the equipment is functioning properly before I can take any results from Ponter as significant.” She held up a hand, as if to forestall an objection. “With this new equipment, it only takes five minutes to do a complete run.”

  Mary felt her heart pounding. This wasn’t something she wanted to investigate scientifically. Like the late, lamented Stephen Jay Gould, she’d always believed science and religion were—to use his musical phrase—“nonoverlapping magesteria,” each having relevance, but one having nothing to do with the other. “I’m really not sure that—”

  “Oh, don’t worry; it’s not dangerous! The field I use for the transcranial magnetic stimulation is just one microtesla. I rotate it counterclockwise about the temporal lobes, and like I said, almost all of the people—of the Homo sapiens , I should say—who try this have a mystical experience.”

  “What…what’s it like?” asked Mary.

  Veronica said, “Excuse us” to Ponter, and she led Mary away from him—her test subject—so that the Neanderthal would not overhear. “The experience usually involves the perception that there’s a sentient being standing behind them or near them,” said Veronica. “Now, the form of that experience depends a lot on the individual’s own preconceptions. You put a UFO fanatic in there, and he’ll sense the presence of an alien. Put in a Baptist, and she might say she sees Christ himself. Someone who’s lost somebody recently may see that dead person. Others say they’ve been touched by angels or God. Of course, the experience is totally controlled here, and the test subjects are fully aware that they are in a lab. But imagine the same effect being triggered late at night when our friends Bubba and Clete are out in the middle of nowhere. Or while you’re sitting in a church or mosque or synagogue. It really would knock your socks off.”

  “I really don’t want…”

  “Please,” said Veronica. “I don’t know when I’ll get another chance to check a Neanderthal—and the baseline has to be set first.”

  Mary took a deep breath. Reuben had indeed certified the process as safe, and, well, she certainly didn’t want to let down this eager young woman who thought so highly of her.

  “Please, Mary,” said Veronica again. “If I’m right about what the results will be, this will be a huge step forward for me.”

  Canadian women taking the world by storm. How could she say no?

  “All right,” said Mary reluctantly. “Let’s do it.”

  Chapter Seven

  “ Our strength is our wanderlust; our curiosity; our exploring, searching, soaring spirit…”

  “Are you all right?” said Veronica Shannon over the speaker next to Mary’s ear. “Comfortable?”

  “I’m fine,” said Mary, speaking into a little microphone that had been clipped to her shirt. She was seated on a padded chair inside a darkened chamber about the size of a two-piece bathroom. The walls, as she’d seen before the lights were turned out, were covered with little pyramids of gray foam rubber, presumably to deaden sound.

  Veronica nodded. “Good. This won’t hurt a bit—but at any time if you want me to shut the equipment off, just say so.”

  Mary was wearing a yellow headset that had been fashioned from a motorcycle helmet, with solenoids o
n the sides, directly over her temples. The helmet was attached by a bundle of wires to a rack of equipment leaning against one wall.

  “Okay,” said Veronica. “Here we go.”

  Mary had thought she would hear a buzzing, or feel a tickling between her ears, but there was nothing. Just darkness and silence and—

  Suddenly Mary felt her back tense and her shoulders hunch up. Someone was there, in the chamber with her. She couldn’t see him, but she could feel his eyes boring into the back of her skull.

  This is ridiculous , thought Mary. Just the power of suggestion. If Veronica hadn’t primed Mary with all her talk, she was sure that she wouldn’t be experiencing anything. Christ, the things you could get research funding for sometimes amazed her. It was nothing more than a parlor trick, and—

  And then she knew who it was—who was there, in the chamber with her.

  And it wasn’t a him.

  It was a her .

  It was Mary.

  Not Mary Vaughan.

  Mary.

  The Virgin.

  The Mother of God.

  She couldn’t see her, not really. It was just a bright, bright light, moving now in front of her—but a light that didn’t sting the eyes at all. Still, she was sure of who it was: the purity, the serenity, the gentle wisdom. She closed her eyes, but the light did not disappear.

  Mary.

  Mary Vaughan was her namesake, and—

  And the scientist in Mary Vaughan came to the fore. Of course she was seeing Mary. If she’d been a Mexican named Jesus— Hay-sooz —she’d perhaps think she was seeing the Christ. If her name were Teresa, it would doubtless be Mother Teresa she’d think she was seeing. Besides, she and Ponter had been talking about the Virgin Mary just yesterday, so—

  But no.

  No, that wasn’t it.