t was as if someone had splashed water in Gregor's face and brought reality rushing back. Ever since he'd fallen through the hole in the wall, things had been happening so fast, it was all he could do to keep up with them. Now, in this momentary calm, the words "New York City" came as a shock.

Yes! He was a kid who lived in New York City and had to do the laundry and get back upstairs with his little sister before his mother -- his mother!

"I have to get home now!" Gregor blurted out.

His mom worked as a receptionist at a dentist's office. She usually got off right at five and was home by five-thirty. She'd be worried sick if she came in and found that he and Boots had disappeared. Especially after what had happened to his dad. He tried to figure out how much time had passed since he was in the laundry room. "We probably fell for, let's say, five minutes and then we must have run for about twenty with the roaches and we've been here maybe ten," he thought. Thirty-five minutes.

"Okay, so the clothes should be about dry!" he said aloud. "If we get back up there in the next twenty minutes it should be okay." No one would think to look for them before that, and he could just take the laundry up and fold it in the apartment.

"Really, I need to go back up right now," he said to Vikus.

The old man was still examining him closely. "It is simple to fall down, but the going up requires much giving."

"What do you mean?" asked Gregor, his throat tightening.

"He means you cannot go home," said Luxa flatly. "You must stay with us in the Underland."

"Uh, no! No, thank you!" said Gregor. "I mean, you're all great, but I've got stuff to do... upstairs!" he said. "Thanks again! Nice meeting you! Come on, Boots!"

Gregor scooped up his sister and headed for the arched opening the roaches had left by. Out of the corner of his eye he saw Luxa raise her hand. For a moment he thought she was waving good-bye, but that couldn't be right. Luxa wasn't friendly enough to wave. "If it's not a wave, then it's a signal!" he muttered to Boots. Then he bolted for the doorway.

He might have made it if he hadn't been hauling Boots, but he couldn't really run with her in his arms. Ten yards from the exit the first bat swept in front of him, knocking him flat on his back on the ground. His body cushioned Boots's fall, and she immediately sat up on his stomach to enjoy the show.

Every bat in the arena had dived for them. They flew in a tight circle around Gregor and Boots, locking them in a prison of wings and fur. Each one had a rider as pale and silver-haired as Luxa. Despite the close proximity and speed of the bats, none of the people had any trouble staying mounted. In fact, only a few bothered to hold on at all. One cocky-looking guy on a glossy black bat actually lay in a reclining position, propping up his head with one hand.

The riders couldn't take their eyes off the captives. As they flashed by, Gregor could see their expressions ranged from amusement to outright hostility.

Boots bounced on his stomach and clapped her tiny hands. "Bats! Bats! Bats! Bats!"

"Well, at least one of us is enjoying this," thought Gregor.

Boots loved bats. At the zoo, she'd stand in front of the large plate-glass window of the bat habitat forever if you let her. In the small, dark display, hundreds of bats managed to flit around continuously without knocking into one another. They could do that because of something called echolocation. The bats would emit a sound that would echo off something solid and they'd be able to tell where it was located. Gregor had read the card on echolocation about a billion times waiting for Boots to get tired of the bats. He felt like something of an expert on the subject.

"Bats! Bats! Bats!" chanted Boots, using his stomach for a trampoline. Feeling queasy, Gregor pushed himself up on his elbows and scooted her onto the ground. The last thing he needed was to throw up in front of these people.

He got to his feet. Boots tucked her arm around his knee and leaned against him. The circle of bats shrunk in even closer. "What? Like I'm going somewhere?" said Gregor with aggravation. He heard a couple of the riders laugh.

Luxa must have given another signal, because the bats peeled off one at a time and began wheeling around the arena in complicated patterns. Gregor saw that neither she nor Vikus had bothered to move from where he had left them. He looked at the doorway and he knew it was pointless. Still... these people were a little too smug for their own good.

Gregor sprinted three steps for the exit before he whipped around and headed back to Luxa, catching his sister's hand on the way. Taken by surprise, the bats broke out of their formation and zoomed down, only to find themselves with no one to capture. They pulled up in an awkward clump, and while they didn't actually collide, Gregor felt gratified to see several riders struggling to stay on their bats.

The crowd, which had been amazingly quiet since their appearance, broke out in appreciative laughter. Gregor felt a little more confident. At least he wasn't the only one who'd looked like an idiot. "Faked them out," he said to Boots.

Luxa's gaze was icy, but Gregor saw Vikus trying to suppress a smile as he walked up. "So, you said something about a bath?" he said to Luxa.

"You will follow to the palace now," said Luxa crossly. She flicked her hand, and her golden bat swept down behind her. Just as it was about to crash into her, Luxa leaped in the air. She lifted her legs straight out to the sides and touched her toes in a move Gregor thought he'd maybe seen cheerleaders do. The bat ducked under her, and she landed on its back easily. It arched up, missing Gregor by inches. Then it righted itself in the air and sped out of the stadium.

"You're wasting your time with that stuff!" called Gregor, although Luxa was out of earshot. He felt angry with himself because, in fact, he had to admit this girl had some moves.

Vikus had heard him, though. His smile broadened. Gregor scowled at the old man. "What?"

"Will you follow to the palace, Overlander?" asked Vikus politely.

"As what, your prisoner?" said Gregor bluntly.

"As our guest, I hope," replied Vikus. "Although Queen Luxa has no doubt ordered the dungeon readied for you." His violet eyes literally twinkled, and Gregor found himself liking the man in spite of him self. Maybe because he was pretty sure Vikus liked him. He resisted the temptation to smile.

"Lead the way," said Gregor indifferently.

Vikus nodded and waved him toward the far side of the arena. Gregor followed a few steps behind him, towing Boots.

The stands were beginning to empty. High in the air, the people filed out through exits between their bleachers. Several bats still wove around the stadium doing aerodynamic maneuvers. Whatever game had been in progress had ended when Gregor arrived. The remaining bats and riders were hanging around to keep an eye on him.

As they neared the main entrance of the stadium, Vikus dropped back and fell in step with Gregor. "You must feel as if you are trapped in a dream, Overlander."

"I was thinking nightmare," said Gregor evenly.

Vikus chuckled. "Our bats and crawlers -- no, what is it you call them? Cockhorses?"

"Cockroaches," corrected Gregor.

"Ah, yes, cockroaches," agreed Vikus. "In the Overland, they are but handfuls while here they grow largely."

"How do you know that? Have you been to the Overland?" said Gregor. If Vikus could get there, then so could he and Boots.

"Oh, no, such visits are as rare as trees. It is the Overlanders who come at times to us. I have met six or seven. One called Fred Clark, another called Mickey, and most recently a woman known as Coco. What are you called, Overlander?" asked Vikus.

"Gregor. Are they still here? Are the other Overlanders still here?" asked Gregor, brightening at the thought.

"Sadly, no. This is not a gentle place for Overlanders," said Vikus, his face darkening.

Gregor stopped, pulling Boots up short. "You mean you killed them?"

Now he'd insulted the guy.

"We? We humans kill the Overlanders? I know of your world, of the evils that transpire there. But we do not kill for sport!" said Vikus severely. "Today we have taken you in among us. Had we denied you, count on it, you would not be breathing now!"

"I didn't mean you... I mean, I didn't know how it worked here," stammered Gregor. Although he should have guessed that it wasn't very diplomatic to suggest Vikus was a murderer. "So, the roaches would have killed us?"

"The crawlers kill you?" said Vikus. "No, it would give them no time."

There was that expression again. What did it mean to give the roaches time?

"But no one else even knows we're here," said Gregor.

Vikus looked at him gravely. Concern had replaced his anger. "Believe me, boy, by this time, every creature in the Underland knows you are here."

Gregor resisted an impulse to look over his shoulder. "And that's not a good thing, is it?"

Vikus shook his head. "No. That is not in any manner a good thing."

The old man turned to the exit of the stadium. Half a dozen pale, violet-eyed guards flanked two gigantic stone doors. It took their combined efforts to push the doors open a few feet and to allow Vikus to pass.

Gregor led Boots through the doors, and they closed immediately behind him. He followed Vikus down a tunnel lined with stone torches to a small arch filled with something dark and fluttery. Gregor thought it might be more bats, but on closer inspection he saw it was a cloud of tiny black moths. Was this what he had passed through when he stumbled into the stadium?

Vikus gently slid his hand into the insects. "These moths are a warning system peculiar to the Underland, I believe. The moment their pattern of flight is disturbed by an intruder, every bat in the area discerns it. I find it so perfect in its simplicity," he said. Then he vanished into the moths.

Behind the curtain of wings, Gregor could hear his voice beckoning. "Gregor the Overlander, welcome to the city of Regalia!"

Gregor glanced down at Boots, who had a puzzled look on her face. "Go home, Ge-go?" she asked.

He picked her up and gave her what he hoped was a reassuring hug. "Not now, baby. We have to do some things first. Then we'll go home."