Reluctantly, Caroline thought, he brought his eyes back to focus. "They called themselves the Greens. There were sixty of them, refugees from another world."

"Which one?" Caroline asked.

"They don't know," Velovsky said. "The stars here are nearly identical to those they could see from their home, though there are a number of subtle differences."

"An astrophysicist might be able to pin it down," Roger suggested. "They could draw up some star maps for comparison."

"They could also announce their presence on the eleven o'clock news," Velovsky said tartly.

"They're trying to keep a low profile, if you hadn't already guessed."

"But if they don't know where they are, how did they get here?" Caroline asked. "Did they lose their charts afterward?"

"They didn't have any charts," Velovsky said. "Or navigators, either, at least not the way we use the term. Back on their world their remaining Farseers had been able to pull up images of Earth, and their Leaders decided this was where they would go. The Farseers and remaining Groundshakers were able to throw the transport through space to Earth, bringing it out in the Atlantic somewhere off Long Island."

"How long did the trip take?" Roger asked.

Velovsky shrugged. "Apparently instantaneous. The transport was capable of underwater travel, so they brought it to the base of Ellis Island, buried it partway in the silt, and dug a tunnel up to the storage room."

"Have you seen this transport yourself?" Caroline asked.

Velovsky nodded. "I was feeling woozy after that contact—so was the Leader, for that matter—so they took us back to the transport to rest while the Lifesingers did some quick healing. I've been down several times since then, just visiting. They use it as a sort of hydroponics farm to grow some of their native herbs and spices."

"What's it like?" Roger asked.

"Relatively small, but nicely laid out," Velovsky said. "The fact that it matched with the mental images I'd just been given helped convince me that everything else he'd shown me was genuine, too."

He smiled. "My boss chewed me out royally when I finally got back upstairs," he added. "He was particularly mad that he couldn't figure out where I'd disappeared to. If he'd only known."

"Sounds like a lot of unnecessary risk, sneaking into Ellis that way," Roger pointed out. "Why not just come in along the coast of Maine or something?"

"I don't know how the decision was made," Velovsky said. "I do know they chose the United States deliberately, and I can only assume they'd decided that if they were going to live here they should be official about it. The Greens always look at the long-term aspects."

"Is Aleksander the Leader you met?" Roger asked.

"Aleksander's a Persuader, not a Leader," Velovsky said.

"Can't he be both?"

"Actually, no, he can't," Velovsky said. "Or rather, a Leader is a Persuader, but the Persuader Gift has to be combined with the Gift of Visionary. They don't have any true Leaders or Visionaries at the moment, and Persuaders are next in line. It's not ideal, but it's the best they have right now."

"But the one you met was a true Leader?" Caroline asked.

Velovsky nodded. "Leader Elymas, who unfortunately died within a week of reaching New York.

I've often wondered if the strain of sharing his mind with me was part of what killed him." His lip twitched. "Or maybe I absorbed a share of his strength and stamina along with those thoughts. I've certainly aged more gracefully than most of my contemporaries."

"So if Aleksander is their acting leader, what's the story with Cyril?" Roger asked.

Velovsky grimaced. "Unfortunately, the lack of a true Leader has allowed two factions to form among the Greens," he said. "Aleksander and Cyril each lead one of them."

"And what's Cyril's job?" Roger continued. "Is he a Persuader, too?"

"They're Gifts, not positions, "Velovsky corrected. "Special talents Greens are born with that define what they're going to be as adults. And yes, Cyril is also a Persuader."

"What did you mean by the remaining Farseers and Groundshakers?" Caroline asked. "Was there some sort of catastrophe on their world?"

"There was indeed," Velovsky said, the corners of his mouth tightening. "Their entire civilization was nearly wiped out in a devastating war."

"Let me guess," Roger said, his voice graveyard dark. "They were at war with a people who called themselves the Grays."

"Very good," Velovsky said bitterly. "The same Grays, in fact, who now threaten to destroy everything the Greens have spent the last seventy-five years building. They want to begin the war all over again, to finish what they started on their home world.

"And to perhaps destroy this world in the process."

For a long minute the only sound in the room was the quiet popping of the radiator beneath the window. "But why now?" Caroline asked. "Why, after all these years?"

Velovsky sighed. "That's one of the genuine ironies of this whole situation," he said. "I helped get the Greens get through immigration, figuring they would do best in northern New England or Colorado. But they apparently liked the idea of living in a city for a change, so at Leader Elymas's insistence I set them up in Manhattan. There were certainly enough trees in Central Park for a colony that small."

"Yes—the trees," Roger pounced. "What's that all about?"

"The Greens' bodies aren't like anything found on Earth," Velovsky said. "Their cells are much smaller, their whole physical structure far more mutable. They also have a strange—well, let's be honest; a rather parasitic relationship with trees. They can melt their way through the bark and settle into the core of the tree, wrapping themselves into a much smaller volume than you'd expect. While inside, they're able to draw nourishment and strength from the tree's own biological processes."

"Doesn't sound very efficient," Roger said, sounding doubtful.

"Efficiency isn't the only consideration," Velovsky pointed out. "A few milligrams of Vitamin C

make a world of difference for a man with scurvy, after all. If you need something, no matter how small or seemingly insignificant, you still need it. In the Greens' case, they need periodic contact with trees."

"Can they also be healed that way?" Caroline asked, thinking back to Melantha's bruises.

"To a certain extent," Velovsky said. "Spending time inside trees also nurtures growth, particularly in the children."

"A block east of Jackson Square," Roger said suddenly.

"What?" Velovsky asked.

"I was just remembering how Aleksander described your location," Roger said. "Not Greenwich at Eighth, or the West Village, but across from Jackson Square."

"Typical Green directions," Velovsky agreed. "They always think in terms of parks and trees."

Caroline nodded. "And Melantha told me she lived in Inwood Hill Park—"

"Melantha?" Velovsky cut her off, his eyes widening, his voice suddenly intense. "You know where Melantha is?"

"Yes, let's talk about Melantha," Roger jumped in before Caroline could answer. "Why does everyone want to kill her?"

Velovsky hesitated, his eyes shifting back and forth between them. "If you know where Melantha is, it's absolutely vital you tell Aleksander."

"So we've heard," Roger said. "You were telling us about Ellis Island?"

Velovsky eyed him a moment longer, then lowered his gaze. "I got some jobs lined up and found them a nice little building off Central Park for their—well, call it their headquarters. A couple of apartments was all they needed, since they really only used them for official residence purposes.

Mostly of their off-work time was spent in the park itself."

"Is that the building on 70th near Central Park West?" Caroline asked. "I saw a lot of Greens listed at that address."