"Good girl!" Daisy said, giving Dewey an I-told-you-so look.

"Open the backpack now, Emmy," Jesse said.

A crowd of kids and pets had gathered around to watch the performance. Emmy held the bag down with her forepaws while she took the small tab between her teeth and unzipped the top of the backpack.

The crowd let out an "Ooooooh!" of approval.

Jesse held up a hand to show they were not finished yet. "Okay, Emmy, now find the doggie book," he said.

Emmy poked her nose inside the backpack and pulled out Higglety Pigglety Pop! Higglety Pigglety Pop! or or There Must Be More to Life There Must Be More to Life . .

"Thanks, Em. Now show us how you can read the doggie book...all by yourself." Jesse looked around at the crowd. "She can read. She really can. She taught herself."

Emmy set the book on the floor. Then, nosing it open to the first page, she began to bark in a rhythm that sounded remarkably like the opening paragraph of Maurice Sendak's famous book.

While the kids, pets, and the two librarians 78.stood around and listened, Daisy moved closer to Jesse and spoke to him out of the corner of her mouth. "So. Did you break through to the other side?"

Jesse shook his head and said, "That girl with the snake cornered me. I think she was hoping I'd be scared, but I told her I used to own an African rock python twice as long when we lived in Africa. She let me hold him. He's pretty nice. His name is Slick. You should check him out."

"No, thanks," Daisy said. "The only thing I want to check out is the book on the historic homes of Goldmine City."

"At the rate we're going, we're going to have to wait until everyone's asleep later tonight," said Jesse.

Just then, the crowd in the library burst into loud applause.

Daisy looked around. "What's going on? Why is everyone clapping?" she asked.

"They're clapping because our dog knows how to read," Jesse said.

Daisy shook her head slowly and sighed. "If they only knew what other tricks she can do!"

CHAPTER FIVE

DRAGON HEAVEN.

Emmy lifted her head from the book with a look of becoming modesty. But the look she shot Jesse said something more like When can we get out of here and spring the professor from that dame's dungeon? When can we get out of here and spring the professor from that dame's dungeon?

"That was great, girl!" Jesse said, kneeling and 80.burying his nose in Emmy's fur, which still bore the faintest scent of hot chili peppers.

Daisy whispered, "Don't you think you got a little carried away?"

Jesse spoke through clenched teeth. "n.o.body calls our dog dumb and gets away with it." "n.o.body calls our dog dumb and gets away with it."

Mr. Stenson clapped his hands loudly. "Okay, kids. Now, did everybody follow the rules and feed your pets their dinner before you came tonight?"

"I fed mine crickets," a boy said.

"I fed mine a live rat," the little girl with the python said.

"I fed mine mealworms!" someone else said.

"Okay, okay, kids, thanks for sharing," said Mr. Stenson, holding up his hands. "I'm glad your pets all have full tummies, because we humans are about to fill ours, and no begging begging pets are allowed in this library tonight." pets are allowed in this library tonight."

Mrs. Thackeray, the Library G.o.ddess, dealt out paper plates, napkins, and plastic utensils as everybody lined up and filed past the food table, piling their plates high with the various pet-inspired dishes.

They had finished eating and had stuffed their dirty plates into the big plastic garbage bag when Mr. Stenson directed them to arrange their sleeping bags in a circle on the floor. Jesse and Daisy took 81.care to situate themselves on the outermost edge of the circle, closest to the adult section. Mr. Stenson and Mrs. Thackeray had placed their sleeping bags in the middle of the circle next to a large electric lantern that Mr. Stenson had enthusiastically designated as their campfire.

After they had all lined up to brush their teeth and wash their faces in the library lavatory, it was story time. Mr. Stenson invited them, one by one, to come into the center of the circle and read aloud a few pages from the story they had chosen.

Jesse sat cross-legged on top of his sleeping bag and held the Sendak book to his chest, waiting for his turn to read. Jesse might be shy, but he was a much better public reader than Daisy. For some reason not even she understood, Daisy's voice just disappeared when she had to read aloud. Emmy burrowed into Daisy's sleeping bag and turned around with her nose poking out the top. Daisy wrapped her arms around Emmy and used her as a pillow. Megan Lowe, a prim fifth grader, opened her book and began to read aloud about a cat that had traveled with the pilgrims on the Mayflower Mayflower . .

The girl's droning voice quickly made Daisy as drowsy as a feaster with a belly full of turkey. She wondered whether the professor was allowed to eat anything in the tower. Was Sadie Huffington 82.feeding him bread and water, or raw meat?

Then Kevin O'Hanlon, who had brought a fence lizard, read the opening chapter of Farewell, My Lunchbag Farewell, My Lunchbag , featuring lizard sleuth Chet Gecko. Daisy kept falling asleep and snapping awake. Were those big black dogs naturally vicious, or had Sadie Huffington bewitched them into being that way? , featuring lizard sleuth Chet Gecko. Daisy kept falling asleep and snapping awake. Were those big black dogs naturally vicious, or had Sadie Huffington bewitched them into being that way?

Next came the girl who had brought the lone goldfish. Daisy knew her only as the soon-to-be third grader who was always organizing games of wild horses on the playground. Her parents, Tina explained, had given her the goldfish, when what she really wanted was a horse. She tossed her long mane of hair and read aloud from Black Beauty Black Beauty , a deeply sad pa.s.sage that Daisy only half heard. , a deeply sad pa.s.sage that Daisy only half heard.

Daisy kept her eyes open just long enough to find out what Dewey Forbes had brought to read. It was Poodles for Pinheads Poodles for Pinheads , and if you didn't happen to own a poodle, it was a real snooze. , and if you didn't happen to own a poodle, it was a real snooze.

She hoped Jesse would forgive her for missing his reading of Higglety Pigglety Pop! Higglety Pigglety Pop! , because she really couldn't keep her eyes open another second. , because she really couldn't keep her eyes open another second.

Jesse's eyes snapped open. Someone had just poked him with something sharp, in the small of the back. He lifted his head and looked behind him, but no one was there. Everyone was curled up, fast asleep, 83.wrapped in the folds of their sleeping bags. The lights were out, the air-conditioner rumbled, and the full moon shone in the big front windows of the library, washing the spines of all the books in a pale, silvery light.

He sat up and reached over to shake Daisy awake, and she popped up. She blinked and rubbed her eyes, then automatically ran the fingers of one hand through her bedhead hair while she tapped Emmy on the shoulder. The sheepdog lifted her head and shook herself awake, rattling the gold locket on her collar.

Daisy put her finger to her lips. "Shhhhh." She pointed to the other side of the library. Jesse pointed to the backpack. Daisy nodded and grabbed it.

Easing themselves out of their sleeping bags, they tiptoed away from the circle of sleepers and ducked under the orange tape. Finally, they made it onto the altogether less-familiar side of the library, where the grown-up books were. The grown-ups' card catalog computer, which Jesse had been eyeing all night long, sat on a small table near the librarian's desk. They approached it.

Jesse groped around for the computer switch. The screen lit up and the computer made a whirring sound, followed by a loud voop voop . He shot an anxious look over at the children's side. But all he heard was . He shot an anxious look over at the children's side. But all he heard was 84.snoring, a guinea pig rustling in its wood shavings, and a hamster jogging in its squeaky wheel.

Jesse wiggled his fingers and keyed the words "Goldmine City Historic Houses" into the search box. The next minute, a single t.i.tle popped up on the screen: The Grand Historic Homes of Goldmine City The Grand Historic Homes of Goldmine City . .

With her hands resting on Jesse's shoulders, Daisy leaned toward the monitor and scanned the description along with him. Jesse tapped the screen. There was a listing for the Presidential Palace, built in 1901 by someone named Skinner, who was the head of the Pacific Mountains Mining Company. The address was listed simply as Old Mine Lane. Daisy pulled her wildflower notebook out of the backpack, tore a corner from a page, and copied down the book's call number. Then she stuffed the notebook into her backpack and slung it over her shoulders.

Emmy led the way toward the stacks. She seemed to know her way around, which was a good thing, because Jesse and Daisy felt like strangers where the shelves were higher and the books were thicker and darker and altogether more serious-looking.

The cousins followed Emmy into the aisle marked NONFICTION. Emmy went halfway down 85.and halted, turning to face the shelves on the left-hand side. She looked up and wagged. Jesse and Daisy followed her gaze up to where it rested on the fourth shelf.

Jesse started on the left and scanned the call numbers. In the exact spot where the book should have been was a wide gap. Jesse rose up on his tiptoes to see if the book had gotten pushed to the back of the shelf.

Jesse gasped as a head popped out and a voice said "boo!" right in his face.

It was the shelf elf!

Reeling backward, and forgetting all about his library voice, Jesse let out a startled yelp. Daisy clamped her hands around Emmy's jaw to keep her from doing the same.

The elf stuck his head out even farther and, with a long finger pressed to his lips, said, "Shhhhh!"

Daisy whispered furiously, "Shh yourself! Who are you, anyway?"

The shelf elf popped back into the gap and disappeared.

Emmy scrambled around to the next aisle over, with Jesse and Daisy right on her tail. But there was no shelf elf to be found.

"Psssst!"

86.They spun around. The elf was standing at the head of the aisle, hands on his hips. Then he leaped into the air and sped away.

"After him!" Jesse cried in a fierce whisper.

They took off in hot pursuit, their stocking feet skidding to a slippery halt as the elf hopped up on top of a reading table, slid the length of it, hurtled over the backs of three chairs, bounced on the seat of a fourth, and dived headlong into the fiction section. Emmy, Jesse, and Daisy ran around the table, giving chase to the shelf elf up one aisle and down another. But the nimble little man always managed to stay at least half an aisle ahead of them. Finally, at the end of the R R to to Z Z aisle of the nonfiction section, the shelf elf stopped and spun around to face them, backed into a corner at last. aisle of the nonfiction section, the shelf elf stopped and spun around to face them, backed into a corner at last.

"Got you now!" Jesse whispered, and he started to close in on the shelf elf.

Just as they were almost upon him, the elf shot up into the air and dived into a small hole in the floor by Jesse's feet.

"Whoa!" said Daisy.

"How did he do that?" Jesse asked.

The cousins and Emmy leaned over the small hole, then stared at each other in disbelief: How could that small elf have fit into this even smaller hole?

87.Daisy got down on her hands and knees and peered into the hole, trying to see where the elf had gone.

"I don't see anything," she whispered.

As Jesse watched, something started moving inside the pack on Daisy's back. A second later, it rolled out the top.

"The Sorcerer's Sphere!" Jesse cried, lunging to catch it.

"Get it!" Daisy said as the sphere b.u.mped off her shoulder, rolled down her arm, and disappeared into the hole with a hollow pop pop . .

All three of them shrank back, shielding their eyes from the blinding white light that suddenly poured out of the hole and flooded the entire library. The next minute, the stone floor beneath them gave way, like an elevator in free fall, taking them down with it. Faster and faster they fell, the cool air whistling past their ears. They screamed, then squeezed their eyes shut, rolled themselves up into tiny little b.a.l.l.s, and prayed for a gentle landing.

A minute or two later, they alit at the bottom like feathers, upright and flat on their feet. Giddy with relief, Jesse opened his eyes. The first thing he saw was Emmy, in dragon form, with the silver paper princess tiara slipped over onto the side of her head. An even funnier sight was Daisy. Her long 88.blond hair was standing straight up in the air. When he reached over to touch it, it crackled and sent a zing of static electricity up his arm.

"Sorry," said Daisy. "Yours looks pretty funny, too. Look at that." She pointed.

Standing before them, on a tall pedestal that resembled an oversize golf tee made of gold, was the Sorcerer's Sphere, but it was no longer a rusty sphere. It was now a beautiful, sparkling, multi-faceted ruby.

"Wow. What is this place?" Jesse said, looking around.

It had the airy indoor-outdoor feel of an enormous sports stadium or a cathedral. The ceiling--if there was one--was obscured by a blanket of thick golden fog. It smelled as sweet and rich as the air in his mother's favorite spice shop in Bangalore, India.

"It's a library," Daisy said, turning in a slow circle. "But it's not the Goldmine City Public Library."

It was a library on a gargantuan scale. They slowly set out down its broad central aisle, which was nearly as wide as Goldmine City's Main Street. They stopped here and there to peer down the side aisles. The aisles stretched out to eternity, lined with bookshelves rising to dizzying heights and jampacked 89.with books as ma.s.sive as the one stolen from Miss Alodie's parlor--and some of them a good deal bigger. The ma.s.sive tomes were bound in a rainbow of leather hues so dazzling, Jesse wanted to run his fingers along them like the keys of some fantastic piano.

Daisy rummaged in the backpack, then wrestled her hair into a bun and skewered it with a pencil. "Well," she said, when she had managed the feat, "at least now we know where that big red book came from."

Jesse wasn't looking at the books just then. He was looking at all the creatures scuttling overhead. They slid from shelf to shelf on a webwork of fine silken filaments, like mountaineers rappelling down a rock face. Jesse heard a droning noise. He recognized it as the sound of talking and muttering and humming.

"Shelf elves!" Emmy said. "What did I tell you two!"

"Right again, Emmy," Jesse said.

One of the elves broke away and began to hurtle downward at an alarming rate, landing before them with a crunching sound and a breathless little "Oof!" and a bow. And seemingly to himself: "Watch the knees now. My word!"

Jesse somehow knew instantly that this was the 90.same shelf elf who had led them on the wild chase through the stacks.

The shelf elf said, "Willum Wink, Chief Steward of the Shelf Elves of the Scriptorium! How may I be of service to you three today? (Or is it tonight? It's always a little hard to tell in here.)"

Something about the shelf elf's voice made Jesse want to giggle. It was high-pitched and it warbled, the way it sounds when you inhale helium from a birthday balloon.

"I, um, ah," said Daisy, and Jesse could tell by the redness of her face that she was fighting the same fit of giggles he was.

Jesse swallowed his mirth. "We're looking for a book," he said, feeling that this was the right thing to say, since it was the truth, or had been up until a few moments ago. Clearly they weren't going to find the book on historical homes here, but it might be where the big red book had come from and, just possibly, where it had been returned. Since the professor and the book had gone missing at approximately the same time, maybe there was a connection. Finding one might help to find the other.

"A book, you say? How novel! (Toss in a little shelf elf humor now and then, I always say, don't I? I do!)" Willum Wink snorted mirthfully to himself.

91."Well, you've come to the right place! Do you happen to have the D-D-D-S-N?"

"The what what ?" Daisy asked. ?" Daisy asked.

Wink narrowed his eyes in a thoroughly suspicious squint. "Who are you really really ? And who sent you here? The Dragon Domain Designation System Number. What else? (What else, indeed!)" ? And who sent you here? The Dragon Domain Designation System Number. What else? (What else, indeed!)"

Emmy piped up with a long string of babble that might have been a number, for all the cousins knew. It seemed to make complete sense to Willum Wink, who stroked his sharp hook of a chin and said, "Yes. No. Sorry. Do pardon me. That volume is in our collection, but she is currently unavailable."

"Unavailable?" Jesse asked. "What do you mean?"

The elf's upturned eyes flashed. "I mean out! out! As in not here at the moment. As in not currently on the shelf. (How many ways must I put it to make them comprehend? My sweet elfin As in not here at the moment. As in not currently on the shelf. (How many ways must I put it to make them comprehend? My sweet elfin word!)" word!)"

Jesse was beginning to see that the elf had a habit of talking to himself in the middle of talking to them and that whenever he did it, his eyes crossed, as if they were chatting with each other over the bridge of his nose.

"It's out. We get it," Daisy said. "But what I don't get is how can a book be a she or a he?"

The elf gave his dusty little tuft of hair a tug. "A 92.book can be a she or a he depending upon whether it is a female or a male," Mr. Wink said. "And this particular she she checked herself out, let me see now (it's here somewhere, I know. Isn't it? Well, of course it is!)..." He opened a small notebook and hummed to himself as he flipped through the pages. He stopped and tapped a page with a finger that had twice as many joints as any human finger and a pointy nail. "Two terrestrial great moons ago." checked herself out, let me see now (it's here somewhere, I know. Isn't it? Well, of course it is!)..." He opened a small notebook and hummed to himself as he flipped through the pages. He stopped and tapped a page with a finger that had twice as many joints as any human finger and a pointy nail. "Two terrestrial great moons ago."

"Two months ago, you mean? Checked herself herself out?" Jesse said. out?" Jesse said.

"Yes, dearie. That's what books do here," Mr. Wink said absently as he tucked the notebook away inside his jacket and began dusting himself off with a tiny whisk broom. His jacket was brown checked and cinched at the waist with a tool belt filled with strange implements. The jacket had elbow patches, which was a good thing because the shelf elf had very sharp elbows. He tucked the little broom into a loop on his tool belt and went on: "Here, they are free to check themselves in and out as they please. They are living matter living matter ! Not dead, as are all the books they keep ! Not dead, as are all the books they keep up there!" up there!" He pointed toward the fog above, by which the children took him to mean the Goldmine City Library. He pointed toward the fog above, by which the children took him to mean the Goldmine City Library.