"I don't think these bars have a chance."

The white thing tried to sit up but couldn't. It flopped side to side and managed to roll onto its face. When it looked up, Cyrus blinked. It had two large silver mesh eyes and an upside-down triangle for a mouth.

"What are you doing in here?" it asked. "You better get out fast."

Leon the turtle was approaching slowly. And then he levered open his enormous mouth. A long piece of skin in the back of his throat writhed like a snake.

Cyrus and Antigone took a step back from the bars. When they did, the turtle bellowed, raised its sh.e.l.l off the floor, and thundered forward.

Before it hit the bars, Cyrus and Antigone shot back through the rear door, tripped over Dennis as he sat up, and tumbled into a wall.

The iron bars screamed under the turtle's impact.

So did Dennis.

The bars bent, but they did not break. The turtle twisted his head to the side, hooked a single bar with his beak, and ripped it free.

"That's Leon!" Dennis yelled. "We're going to die!"

A second bar clattered to the floor.

Antigone stood and kicked Dennis. "Get up and start acting like a Polygoner!"

The white shape appeared behind Leon and pointed. "Four doors down!" it yelled. "That way!" And then it lumbered off.

Leon tore two more bars out at once, then he wormed his head through the gap. He needed to show off his bait.

The huge turtle dropped its sh.e.l.l belly to the floor, cranked open its mouth, wrinkling its puckered old-man face, and held very still-all but the attractively wiggly bit of skin.

Cyrus grimaced, watching the turtle's snake-size uvula twist and slither. "That's disgusting."

Antigone grabbed him by the arm and dragged him down the dim hallway behind the cages.

Leon writhed and snapped as they left, banging his sh.e.l.l forward, bending iron.

Four doors down, Cyrus threw another dead bolt and opened the door, and the three of them stepped into another cage. Wooden roosts were mounted to one wall in an enormous tangle. Bones were strewn across the floor. The bars of the cage were not bent and were not merely missing. They had been torn to pieces.

Dennis froze, giggling nervously. Cyrus and Antigone pulled him through the bones, through the fragmented bars, and out into the main room. The three of them stopped and stared.

"Oh my," Antigone said. "Cy, are you seeing this?"

Cyrus nodded. He had no words. Leon the impossible turtle was still grunting and trying to fight his way into the cage, but Cyrus couldn't even be bothered to look at him. The room was much bigger than he'd been able to see through the bars of a cage, and it was not a room. It was a neocla.s.sical indoor jungle. Second- and third-story mezzanines held open cages and palm trees. Vines climbed eighty feet from the floor to the upper peaks of the skylights. At the far end, so distant as to be visible but noiseless, a small waterfall flowed off the upper mezzanine and into a pool. A few long-tailed birds circled high above.

"This was the biggest wing of the zoo," Dennis said quietly. "It's slightly amazing."

"Slightly," said Antigone. "I'd say."

The white astronaut was waiting for them. He glanced back at Leon and up at the birds.

"Cheese, Leon!" it yelled. "Go get your cheese!"

Instantly, the turtle tore its head free and began sc.r.a.ping its way quickly back in the other direction, its tail slithering and its huge spiny back bobbing as it went.

The white shape put club fists on wide hips. "Now maybe you'll tell me how you got in here. Not that it matters. The O of B will have your bags packed in the morning for this. Some of the Keepers don't even want me in here."

"What are you?" Antigone asked.

The white thing reached up and twisted its head counterclockwise until it popped off.

On top of the enormous white body was the small, red, sweating face of a twelve-year-old boy, wet hair glued to his forehead. "I'm James Axelrotter, zookeeper. You can call me Jax. Who are you?"

"Jax!" Cyrus said. "We needed to find you. We have to get some animal tutoring or something."

The boy scrunched his face. "I don't tutor. And if I did, why would I start with trespa.s.sers and rulebreakers?" He glanced up at the birds in profile against the skylights, and then back over his shoulder.

"We can talk about that later," said Antigone. "We need to get out of this place and find Greeves. Right away."

Jax nodded and pointed them toward a distant door at the end of the room. "That is the closest exit. Stay with me." He began waddling, and Cyrus followed him, examining the boy's white suit.

"What are you wearing?"

"An artificial exoskeleton," Jax said, scanning the room while he walked. "Made from more than half a million interwoven and rubberized Golden Orb-weaver webs-among other things. It's the only way I can survive very long in here. This place was the Crypto wing-unusual, bizarre, especially deadly, and supranatural creatures. Construction began after the Civil War. Axel-rotters have always overseen it. Leon was one of the first to be housed here."

"But they lost control of the animals," Dennis said. "That's why it's closed."

Jax tried to glare at him over his enormous white shoulder. "They did not lose control of the animals. Twenty-four years ago, a Keeper named Edwin Laughlin-Phoenix to everyone now-was inspired by Leon and altered these animals. My grandfather and a number of his staff were killed as a result."

"I don't understand," Cyrus said. "Inspired by Leon? You mean he made the animals big?"

Jax again glanced up, and then turned a full circle as he moved, eyes all over the room. "No. He did not. Though it can have that effect eventually. At first, he modified the personalities-animalities, I guess-of particular animals. Then he exchanged consciousnesses-animal to animal. He ended by modifying and blending animals physically. That is when he was caught. But not before his final phase was executed on more than a few of them-the Leon phase."

Jax looked up and around. "Stay close. I want you alive when I turn you in to Mr. Greeves."

"Terrific," said Antigone. "Right. That's what we want, too."

Cyrus looked over his shoulder. Dennis was huddling quite close to him. "What's the Leon phase?"

"Leon is named after Ponce de Leon." Jax glanced back. "Spanish explorer. Found the Fountain of Youth in Florida. But it wasn't much of a fountain. It was a murky swamp pool deep in the Everglades. They were even swampier then. Leon is how he knew he had found it."

"Are we joking right now?" Cyrus asked.

Jax shook his head while he walked. "That was five hundred years ago, and Leon was already huge and ancient, snacking on gators. Leon is what happens when an alligator snapping turtle lives in the Swamp of Youth for a few centuries. He'll still be alive after our grandchildren are dead. Ponce told the Order about the huge turtle, and they put Leon on the Sage lists and sent Journeymen out to check on him every so often. Then when the swamps were drained off for farming and the fountain was lost, Leon went on the move. He started eating horses on some ranch. That's when the O of B collected him."

"I would never believe any of that," Antigone said. "But I've already seen the turtle. So the Leon phase of the experiments ..."

Jax sighed. "Transmortality. Nearly immortal animals."

"Nearly immortal?" Cyrus asked.

"Not one has died yet," said Jax. "But it's only been two decades. The Sages in the Orbis put all the transmortaled creatures in here, and then they sealed it up. I come in, do my best to clean, and feed them and try to keep everything from going too wild. Not much else I can do."

Something slapped onto the floor behind them.

Cyrus spun around, and Antigone grabbed his arm. Dennis squeaked. Jax swore.

The birds were descending. But they weren't birds.

A fat-bodied red snake slithered toward them, rearing to strike. When it reared, it spread two wings, glistening with white feathers.

Another snake hit the floor. And another.

Jax shoved Cyrus toward the end of the room. "Get to the door! Run! And keep your eyes up!"

Raising his helmet, Jax twisted it back into place. "Now!" he yelled. "Go!" And he lumbered toward the snakes.

Cyrus, Antigone, and Dennis ran.

White wings churned the air above them.

nineteen.

BRENDAN.

A RED CURLING tail brushed through Cyrus's hair, and the viper dropped to the floor six feet in front of him. Others were dropping farther ahead, closer to the door.

Behind him, Antigone screamed.

Cyrus spun around, nearly colliding with Dennis. The porter veered off, but he didn't stop sprinting.

While Cyrus watched, his sister grabbed a snake by the tail and plucked it out of the air. Swinging it hard, she knocked two others to the ground behind her, hurling her serpent club away as she did.

"Duck!" she yelled at Cyrus.

Turning, Cyrus ducked as another diving viper grazed his ear. He dodged around two on the ground.

"Tigs!" he yelled, slowing.

"Go! I'm right behind you!"

Cyrus's bare heels stopped touching the cold marble floor as his strides lengthened. Ahead of him, a viper coiled and reared to strike, wings spread.

Cyrus didn't turn and he didn't slow down. He vaulted, launching into the air and spreading his legs as the snake struck.

His shins folded back the white wings. A fang caught in the thigh of his pants, whipping the snake around and spinning it across the dusty floor as he landed.

"Tigs?" he yelled again.

Dennis had reached the door. He was pulling it open. Cyrus was almost there.

"Tigs!" Cyrus broke down his sprint and turned around.

A big, four-legged shape slid out from the shadow of the mezzanine, rumbling a growl like distant drums. Cyrus froze. It was a bear, long-legged, short-faced, and with a body the size of a bull. It was black, but its belly was tiger-striped with white. White rings circled its eyes, and white fangs dangled beneath its heavy upper lip.

Bounding forward, it rose onto its hind legs, towering twice Cyrus's height, swatting at the vipers. The snakes climbed, circling out of the bear's reach.

Cyrus backed toward the door. The bear dropped to all fours and moved toward Cyrus, claws like flamingo beaks clicking as it came. He couldn't see Antigone behind it.

"Antigone!" Cyrus shouted. "Jax!"

Small bells jingled beside him.

"Gone if she's in there, lad," Sterling said. "Wish I'd gotten here sooner, but these legs aren't made for sprinting." The cook patted Cyrus on the shoulder as the bear bellowed, stringing drool from a drooping lip.

"Let's get this door closed and bolted behind us."

"No." Cyrus shook his head. "Tigs!" He stepped forward, but Sterling grabbed his shirt and held him back.

Cyrus wrenched himself free and staggered toward the bear. "Tigs!" he yelled. The big animal crouched, waiting.

Cyrus took a step to one side and braced himself, preparing to run.

"Hold, lad," Sterling said. "You don't have a chance. Ah, well, I hate to do it, may the animal G.o.ds forgive me."

Cyrus glanced back. The bearded cook extended a four-barreled gun. The gun belched, and a sphere of white fire corkscrewed forward, erupting into the bear's chest. The animal leapt into the air and then bolted for the cages like an avalanche of smoking fur. But Sterling wasn't done. Firing at the circling vipers, he jingled forward until he stood beside Cyrus, and then, with a quick jerk, he brought the b.u.t.t of the gun down onto Cyrus's skull.

Antigone was standing beside an open window at the end of a long, curving hallway dotted with closed doors. The window behind her was three stories up. The doors went to ... she didn't know where.

Her heart was still racing. It hadn't stopped since she'd gotten out of the zoo. Her face was still flushed. Jax had just managed to pull her into a cage. The bars had kept out the bigger animals-the smoking bear and the four-winged vultures-but the snakes ... A heavy bone had been her only weapon, and her arms ached from swinging. Her hands were blistered. She should have died.

She slipped her Quick Water back into her jacket pocket. It still showed her nothing but darkness.

She'd told Rupert everything. But she didn't care about Sterling. Where was Cyrus? He'd been ahead of her. He had to have made it out. But then where was he? She'd been stuck inside with Jax for almost an hour. Another hour had pa.s.sed since she'd gotten out and no one had seen Cyrus.

A sick lump of worry sat in her throat. She shivered and slapped her arms, staring out the open window. She wasn't cold. Even with the early storm wind, the air was warping with heat. The storm still hadn't broken, but the sun seemed to be gone for good, swallowed by flickering clouds.

She wanted Cyrus. She wanted Dan. She wanted to sit beside her mother.

Behind her, a door opened and Jax stepped out beside Rupert Greeves. The boy's face was still red, but rings of salt from his sweat had dried onto his cheeks and forehead. His clothes were soaked through, and he held a gla.s.s bottle full of water in one hand.

Greeves filled the hall. He scratched his bandaged jaw, eyeing Antigone.