The newcomers sat beside Department of Environmental Protection director Carlos Irizzary and Child Welfare commissioner Valari Barocas. Everyone looked a little emotionally threadbare-eyes tired, hair wandering, jaws locked. But Gentry got the impression from the very tight expressions worn by Carlos and Valari that this was the outcast section of the conference room. The people who got in the way of action with finger-wagging “what-ifs.” Of everyone present, only Commissioner Veltre seemed happy-proud?-to see Gentry. When the patrol car had radioed OEM that they were coming in, Weeks had asked that Gentry be brought up with Dr. Joyce. Veltre was pleased that “one of his own” had been in the thick of this from the start.

Doyle did not appear pleased to see either of them.

“Thank you for coming,” the mayor said.

Mayor George Taylor was a tall, robust man. He had a resonant voice that started from somewhere around his knees and picked up power in his broad chest.

“I know it’s been a long, hard day for the two of you, and we all very much appreciate everything you’ve both done.” He turned his steel gray eyes on Nancy. “I understand, Dr. Joyce, that you have specific knowledge of the oversized bat.”

“I do, sir.”

“If you would, bring us up to speed.”

There was strength and confidence in Nancy ’s voice and in her eyes, even in her straight posture. After everything that had happened, Gentry couldn’t imagine where it was coming from.

From knowing what you’re talking about,he decided.

“Mr. Mayor, this bat is a mutation, the offspring of an irradiated vespertilionid bat from Russia.”

“Vespertilionid is the name of the species,” Doyle said, leaning toward the mayor.

“Actually, that’s the family,” Joyce said to the mayor. “Vespertilionidae. Forty-two separate genera, three hundred and fifty-five species. They live almost everywhere in the world-very hardy. This particular bat and her mate came to the city from New Paltz to have pups. I believe, sir, that the birth is imminent.”

Doyle gave her a look.

“Excuse me,” Weeks said, “but how many ‘pups’ do bats have at one time?”

“One or two,” Doyle said.

Joyce glared a look at the pest control chief. Gentry could see the steel in her eyes go molten. After a moment Joyce looked down, took a shallow breath, and continued.

“The small bats-also vespertilionids-apparently came to the city in response to a signal emitted by the male. We don’t know whether the female has the same ability to control the bats. But we do know that whenever she echolocates or generates any sound in the ultrasonic, the bats go wild.”

“Meaning,” Weeks said, “if we stop her, we stop the others.”

“Yes. And I think I have a way to stop her.”

Save for the sound of forced air coming from the vents in the ceiling and Doyle turning a paper clip over and over against the table, the room was silent.

“The bat came to a women’s shelter on Twenty-third Street, I believe, because-and I know this may be a little difficult to accept-she heard a television video game that she thought was her mother’s heartbeat.”

Doyle tossed the paper clip on the table and sat back. The room was somehow much quieter. Even Gentry had to admit that, hearing it spoken here, the notion sounded absurd.

“Why do you believe that?” Weeks asked. There was nothing judgmental in his tone.

“Because there was nothing else in that building that would have attracted the bat. She ate nothing at the shelter. She was there only a minute or two. And she attacked no one, which suggests a mollifying factor, a mollifyingpresence. God knows she wasn’t calm when she left the museum. The children at the shelter were playing the game when the bat came. It apparently became unplugged after that, but when we put it back on it had a sound very much like a heartbeat.”

“You put it back on?” Doyle said.

“Yes.”

“Then why didn’t your bat return?”

“Because she would have been out of range by then.”

Weeks asked, “Assuming this is true, about the heartbeat, what do you propose?”

“I suggest we set a trap for her,” Joyce said. “The bat is nesting somewhere downtown. We’ll probably know her exact location very soon. She’s very close to giving birth, and I suspect she’s stockpiling food for the event even as we speak.”

“Human victims?” Commissioner Veltre asked.

“Possibly. No, probably. She’ll want enough food to tide her over for several days.”

“Gordy,” Veltre said, “I want to pull my people out of the subway stations. I’ll put them on the street where they stand less chance of being caught like that man at Christopher Street.”

“Do it,” said Weeks.

Veltre turned from the table and called on his cell phone.

“How large will this offspring be?” Weeks asked.

“Maybe twenty or thirty pounds,” Joyce said. “A wing-span of possibly two feet, maybe a little more. But its size won’t be the big problem. Nor will its mobility, which will be limited for a few days. The problem is if it starts making the same high-frequency sounds as its mother. The bats in the area will probably respond just as they did to the giant male and female.”

“By gathering around it,” Weeks said.

Joyce nodded.

The mayor said, “Gordy, if Dr. Joyce is correct and we find out exactly where she is, why don’t we just throw everything we’ve got at her?”

“Because, Mr. Mayor,” said Joyce, “you’ll still have the little bats to deal with.”

“You mean her offspring?”

“No. The million other vespers in the city. When she came to the shelter, the small bats were nonaggressive because the giant bat was calm. We have to keep her that way. If you try to sneak up on her, she’ll hear. If she hears, she’ll call for backup, as it were.”

Weeks turned back to Joyce. “So what’s your plan?”

“I’m sort of improvising,” she said, “but I propose we lure the she-bat out of her nest using the video game sound. Bring her to wherewe want her, whether that’s somewhere in the subway tunnels or out in the open. Once we have her there, we kill her in a way that doesn’t involve anyone trying to close in on her.”

“Kill a pregnant female animal,” said Press Secretary Hardaway. “The animal rights activists will excoriate us for that.”

“Sane humans will applaud us,” the mayor said dismissively.

“The question is, how do we kill the bat without getting close to her?” Weeks asked. “Could we put snipers on surrounding rooftops?”

“No,” Joyce said. “The smaller bats would muck things up for a telescopic sight.”

Commissioner Veltre looked at her. “You’re sure of that?”

“I do a lot of shooting,” Joyce said. “The little bats would crisscross the line of fire at different depths of field, making it extremely difficult for a marksman to focus on the target.”

“What about poison gas?” the mayor asked. “We were talking about this before you arrived, Dr. Joyce. The Pied Piper aspect could be perfect. If we have the ability to bring the bat to a specific section of tunnel, then all we have to do is keep everyone away from that area until we’re finished.”

“And I still say that’s much too dangerous,” Department of Health director Whalen and Environmental Protection head Irizzary both said almost at once and with the same exasperation.

“As if a few hundred thousand bats, a mad giant, and tons of bat shitaren’t dangerous,” contributed Doyle.

“They are,” Whalen agreed, “only we don’t even know how large a dose it will take to kill the bat.”

“Plus leaks can and will happen,” added Irizzary. “Especially if we have to keep pouring it on.”

“And then there’s the cleanup afterward,” Whalen said. “It could leak into the water, kill fish, birds-”

“We can always use a shitload of hair spray and a really big tennis racket,” Veltre suggested, only half in jest.

“There is one thing to keep in mind,” Joyce said. “I have no idea how long the bat will sit still when she realizes that the heartbeat isn’t a heartbeat. We may have only a few seconds to destroy her. And I don’t think we’ll be able to draw her out a second time. This creature’s smart.”