She muttered like a sleepwalker in a trance, "A wise choice."

With a chill, Leo realized the woman was, in fact, asleep. Behind the veil, her eyes were closed. But even stranger: her clothes were not made of cloth. They were made of earth-dry black dirt, churning and shifting around her. Her pale, sleeping face was barely visible behind a curtain of dust, and he had the horrible sense that she'd had just risen from the grave. If the woman was asleep, Leo wanted her to stay that way. He knew that fully awake, she would be even more terrible.

"I cannot destroy you yet," the woman murmured. "The Fates will not allow it. But they not do protect your mother, and they cannot stop me from breaking your spirit. Remember this night, little hero, when they ask you to oppose me."

"Leave my mother alone!" Fear rose in his throat as the woman shuffled forward. She moved more like an avalanche than a person, a dark wall of earth shifting toward him.

"How will you stop me?" she whispered.

She walked straight through a table, the particles of her body rea.s.sembling on the other side.

She loomed over Leo, and he knew she would pa.s.s right through him, too. He was the only thing between her and his mother.

His hands caught fire.

A sleepy smile spread across the woman's face, as if she'd already won. Leo screamed with desperation. His vision turned red. Flames washed over the earthen woman, the walls, the locked doors. And Leo lost consciousness.

When he woke, he was in an ambulance.

The paramedic tried to be kind. She told him the warehouse had burned down. His mother hadn't made it out. The paramedic said she was sorry, but Leo felt hollow. He'd lost control, just like his mother had warned. Her death was his fault.

Soon the police came to get him, and they weren't as nice. The fire had started in the break room, they said, right where Leo was standing. He'd survived by some miracle, but what kind of child locked the doors of his mother's workplace, knowing she was inside, and started a fire?

Later, his neighbors at the apartment complex told the police what a strange boy he was. They talked about the burned handprints on the picnic table. They'd always known something was wrong with Esperanza Valdez's son.

His relatives wouldn't take him in. His Aunt Rosa called him a diablo and shouted at the social workers to take him away. So Leo went to his first foster home. A few days later, he ran away. Some foster homes lasted longer than others. He would joke around, make a few friends, pretend that nothing bothered him, but he always ended up running sooner or later. It was the only thing that made the pain better-feeling like he was moving, getting farther and farther away from the ashes of that machine shop.

He'd promised himself he would never play with fire again. He hadn't thought about Ta Callida, or the sleeping woman wrapped in earthen robes, for a long time.

He was almost to the woods when he imagined Ta Callida's voice: It wasn't your fault, little hero. Our enemy wakes. It's time to stop running.

"Hera," Leo muttered, "you're not even here, are you? You're in a cage somewhere."

There was no answer.

But now, at least, Leo understood something. Hera had been watching him his entire life. Somehow, she'd known that one day she would need him. Maybe those Fates she mentioned could tell the future. Leo wasn't sure. But he knew he was meant to go on this quest. Jason's prophecy warned them to beware the earth, and Leo knew it had something to do with that sleeping woman in the shop, wrapped in robes of shifting dirt.

You'll find your destiny, Ta Callida had promised, and your hard journey will finally make sense.

Leo might find out what that flying boat in his dreams meant. He might meet his father, or even get to avenge his mother's death.

But first things first. He'd promised Jason a flying ride.

Not the boat from his dreams-not yet. There wasn't time to build something that complicated. He needed a quicker solution. He needed a dragon.

He hesitated at the edge of the woods, peering into absolute blackness. Owls hooted, and something far away hissed like a chorus of snakes.

Leo remembered what Will Solace had told him: No one should go in the woods alone, definitely not unarmed. Leo had nothing-no sword, no flashlight, no help.

He glanced back at the lights of the cabins. He could turn around now and tell everyone he'd been joking. Psych! Nyssa could go on the quest instead. He could stay at camp and learn to be part of the Hephaestus cabin, but he wondered how long it would be before he looked like his bunkmates-sad, dejected, convinced of his own bad luck.

They cannot stop me from breaking your spirit, the sleeping woman had said. Remember this night, little hero, when they ask you to oppose me.

"Believe me, lady," Leo muttered, "I remember. And whoever you are, I'm gonna face-plant you hard, Leo-style."

He took a deep breath and plunged into the forest.

THE WOODS WEREN'T LIKE ANYPLACE he'd been before. Leo had been raised in a north Houston apartment complex. The wildest things he'd ever seen were that rattlesnake in the cow pasture and his Aunt Rosa in her nightgown, until he was sent to Wilderness School.

Even there, the school had been in the desert. No trees with gnarled roots to trip over. No streams to fall into. No branches casting dark, creepy shadows and owls looking down at him with their big reflective eyes. This was the Twilight Zone.

He stumbled along until he was sure no one back at the cabins could possibly see him. Then he summoned fire. Flames danced along his fingertips, casting enough light to see. He hadn't tried to keep a sustained burn going since he was five, at that picnic table. Since his mom's death, he'd been too afraid to try anything. Even this tiny fire made him feel guilty.

He kept walking, looking for dragon-type clues-giant footprints, trampled trees, swaths of burning forest. Something that big couldn't exactly sneak around, right? But he saw nada. Once he glimpsed a large, furry shape like a wolf or a bear, but it stayed away from his fire, which was fine by Leo.

Then, at the bottom of a clearing, he saw the first trap-a hundred-foot-wide crater ringed with boulders.

Leo had to admit it was pretty ingenious. In the center of the depression, a metal vat the size of a hot tub had been filled with bubbly dark liquid-Tabasco sauce and motor oil. On a pedestal suspended over the vat, an electric fan rotated in a circle, spreading the fumes across the forest. Could metal dragons smell?

The vat seemed to be unguarded. But Leo looked closely, and in the dim light of the stars and his handheld fire, he could see the glint of metal beneath the dirt and leaves-a bronze net lining the entire crater. Or maybe see wasn't the right word-he could sense it there, as if the mechanism was emitting heat, revealing itself to him. Six large strips of bronze stretched out from the vat like the spokes of a wheel. They would be pressure sensitive, Leo guessed. As soon as the dragon stepped on one, the net would spring closed, and voil-one gift-wrapped monster.

Leo edged closer. He put his foot on the nearest trigger strip. As he expected, nothing happened. They had to have set the net for something really heavy. Otherwise they could catch an animal, human, smaller monster, whatever. He doubted there was anything else as heavy as a metal dragon in these woods. At least, he hoped there wasn't.

He picked his way down the crater and approached the vat. The fumes were almost overpowering, and his eyes started watering. He remembered a time when Ta Callida (Hera, whatever) had made him chop jalapeos in the kitchen and he'd gotten the juice in his eyes. Serious pain. But of course she'd been like, "Endure it, little hero. The Aztecs of your mother's homeland used to punish bad children by holding them over a fire filled with chili peppers. They raised many heroes that way."

A total psycho, that lady. Leo was so glad he was on a quest to rescue her.

Ta Callida would've loved this vat, because it was way worse than jalapeo juice. Leo looked for a trigger-something that would disable the net. He didn't see anything.

He had a moment of panic. Nyssa had said there were several traps like this in the woods, and they were planning more. What if the dragon had already stepped into another one? How could Leo possibly find them all?

He continued to search, but he didn't see any release mechanism. No large b.u.t.ton labeled off. It occurred to him that there might not be one. He started to despair-and then he heard the sound.

It was more of a tremor-the deep sort of rumbling you hear in your gut rather than your ears. It gave him the jitters, but he didn't look around for the source. He just kept examining the trap, thinking, Must be a long way off. It's pounding its way through the woods. I gotta hurry.

Then he heard a grinding snort, like steam forced out of a metal barrel.

His neck tingled. He turned slowly. At the edge of the pit, fifty feet away, two glowing red eyes were staring at him. The creature gleamed in the moonlight, and Leo couldn't believe something that huge had sneaked up on him so fast. Too late, he realized its gaze was fixed on the fire in his hand, and he extinguished the flames.

He could still see the dragon just fine. It was about sixty feet long, snout to tail, its body made of interlocking bronze plates. Its claws were the size of butcher knives, and its mouth was lined with hundreds of dagger-sharp metal teeth. Steam came out of its nostrils. It snarled like a chain saw cutting through a tree. It could've bitten Leo in half, easy, or stomped him flat. It was the most beautiful thing he'd ever seen, except for one problem that completely ruined Leo's plan.

"You don't have wings," Leo said.

The dragon's snarl died. It tilted its head as if to say, Why aren't you running away in terror?

"Hey, no offense," Leo said. "You're amazing! Good G.o.d, who made you? Are you hydraulic or nuclear-powered or what? But if it was me, I would've put wings on you. What kind of dragon doesn't have wings? I guess maybe you're too heavy to fly? I should've thought of that."

The dragon snorted, more confused now. It was supposed to trample Leo. This conversation thing wasn't part of the plan. It took a step forward, and Leo shouted, "No!"

The dragon snarled again.

"It's a trap, bronze brain," Leo said. "They're trying to catch you."

The dragon opened its mouth and blew fire. A column of white-hot flames billowed over Leo, more than he'd ever tried to endure before. He felt as if he were being hosed down with a powerful, very hot fire hose. It stung a little, but he stood his ground. When the flames died, he was perfectly fine. Even his clothes were okay, which Leo didn't understand, but for which he was grateful. He liked his army jacket, and having his pants seared off would've been pretty embarra.s.sing.

The dragon stared at Leo. Its face didn't actually change, being made of metal and all, but Leo thought he could read its expression: Why no crispy critter? A spark flew out of its neck like it was about to short-circuit.

"You can't burn me," Leo said, trying to sound stern and calm. He'd never had a dog before, but he talked to the dragon the way he thought you'd talk to a dog. "Stay, boy. Don't come any closer. I don't want you to get caught. See, they think you're broken and have to be sc.r.a.pped. But I don't believe that. I can fix you if you'll let me-"

The dragon creaked, roared, and charged. The trap sprang. The floor of the crater erupted with a sound like a thousand trash can lids banging together. Dirt and leaves flew, metal net flashing. Leo was knocked off his feet, turned upside down, and doused in Tabasco sauce and oil. He found himself sandwiched between the vat and the dragon as it thrashed, trying to free itself from the net that had wrapped around them both.

The dragon blew flames in every direction, lighting up the sky and setting trees on fire. Oil and sauce burned all over them. It didn't hurt Leo, but it left a nasty taste in his mouth.

"Will you stop that!" he yelled.

The dragon kept squirming. Leo realized he would get crushed if he didn't move. It wasn't easy, but he managed to wriggle out from between the dragon and the vat. He squirmed his way through the net. Fortunately the holes were plenty big enough for a skinny kid.

He ran to the dragon's head. It tried to snap at him, but its teeth were tangled in the mesh. It blew fire again, but seemed to be running out of energy. This time the flames were only orange. They sputtered before they even reached Leo's face.

"Listen, man," Leo said, "you're just going to show them where you are. Then they'll come and break out the acid and the metal cutters. Is that what you want?"

The dragon's jaw made a creaking sound, like it was trying to talk.

"Okay, then," Leo said. "You'll have to trust me."

And Leo set to work.

It took him almost an hour to find the control panel. It was right behind the dragon's head, which made sense. He'd elected to keep the dragon in the net, because it was easier to work with the dragon constrained, but the dragon didn't like it.

"Hold still!" Leo scolded.

The dragon made another creaking sound that might've been a whimper.

Leo examined the wires inside the dragon's head. He was distracted by a sound in the woods, but when he looked up it was just a tree spirit-a dryad, Leo thought they were called-putting out the flames in her branches. Fortunately, the dragon hadn't started an all-out forest fire, but still the dryad wasn't too pleased. The girl's dress was smoking. She smothered the flames with a silky blanket, and when she saw Leo looking at her, she made a gesture that was probably very rude in Dryad. Then she disappeared in a green poof of mist.

Leo returned his attention to the wiring. It was ingenious, definitely, and it made sense to him. This was the motor control relay. This processed sensory input from the eyes. This disk ...

"Ha," he said. "Well, no wonder."

Creak? the dragon asked with its jaw.

"You've got a corroded control disk. Probably regulates your higher reasoning circuits, right? Rusty brain, man. No wonder you're a little ... confused." He almost said crazy, but he caught himself. "I wish I had a replacement disk, but ...this is a complicated piece of circuitry. I'm gonna have to take it out and clean it. Only be a minute." He pulled out the disk, and the dragon went absolutely still. The glow died in its eyes. Leo slid off its back and began polishing the disk. He mopped up some oil and Tabasco sauce with his sleeve, which helped cut through the grime, but the more he cleaned, the more concerned he got. Some of the circuits were beyond repair. He could make it better, but not perfect. For that, he'd need a completely new disk, and he had no idea how to build one.

He tried to work quickly. He wasn't sure how long the dragon's control disk could be off without damaging it-maybe forever-but he didn't want to take chances. Once he'd done the best he could, he climbed back up to the dragon's head and started cleaning the wiring and gearboxes, getting himself filthy in the process.

"Clean hands, dirty equipment," he muttered, something his mother used to say. By the time he was through, his hands were black with grease and his clothes looked like he'd just lost a mud-wrestling contest, but the mechanisms looked a lot better. He slipped in the disk, connected the last wire, and sparks flew. The dragon shuddered. Its eyes began to glow.

"Better?" Leo asked.

The dragon made a sound like a high-speed drill. It opened its mouth and all its teeth rotated.

"I guess that's a yes. Hold on, I'll free you."

Another thirty minutes to find the release clamps for the net and untangle the dragon, but finally it stood and shook the last bit of netting off its back. It roared triumphantly and shot fire at the sky.

"Seriously," Leo said. "Could you not show off?"

Creak? the dragon asked.

"You need a name," Leo decided. "I'm calling you Festus."

The dragon whirred its teeth and grinned. At least Leo hoped it was a grin.

"Cool," Leo said. "But we still have a problem, because you don't have wings."

Festus tilted his head and snorted steam. Then he lowered his back in an unmistakable gesture. He wanted Leo to climb on.

"Where we going?" Leo asked.

But he was too excited to wait for an answer. He climbed onto the dragon's back, and Festus bounded off into the woods.

Leo lost track of time and all sense of direction. It seemed impossible the woods could be so deep and wild, but the dragon traveled until the trees were like skysc.r.a.pers and the canopy of leaves completely blotted out the stars. Even the fire in Leo's hand couldn't have lit the way, but the dragon's glowing red eyes acted like headlights.

Finally they crossed a stream and came to a dead end, a limestone cliff a hundred feet tall-a solid, sheer ma.s.s the dragon couldn't possibly climb.

Festus stopped at the base and lifted one leg like a dog pointing.

"What is it?" Leo slid to the ground. He walked up to the cliff-nothing but solid rock. The dragon kept pointing.

"It's not going to move out of your way," Leo told him.

The loose wire in the dragon's neck sparked, but otherwise he stayed still. Leo put his hand on the cliff. Suddenly his fingers smoldered. Lines of fire spread from his fingertips like ignited gunpowder, sizzling across the limestone. The burning lines raced across the cliff face until they had outlined a glowing red door five times as tall as Leo. He backed up and the door swung open, disturbingly silently for such a big slab of rock.

"Perfectly balanced," he muttered. "That's some first-rate engineering."

The dragon unfroze and marched inside, as if he were coming home.

Leo stepped through, and the door began to close. He had a moment of panic, remembering that night in the machine shop long ago, when he'd been locked in. What if he got stuck in here? But then lights flickered on-a combination of electric fluorescents and wall-mounted torches. When Leo saw the cavern, he forgot about leaving.

"Festus," he muttered. "What is this place?"

The dragon stomped to the center of the room, leaving tracks in the thick dust, and curled up on a large circular platform.

The cave was the size of an airplane hangar, with endless worktables and storage cages, rows of garage-sized doors along either wall, and staircases that led up to a network of catwalks high above. Equipment was everywhere-hydraulic lifts, welding torches, hazard suits, air-spades, forklifts, plus something that looked suspiciously like a nuclear reaction chamber. Bulletin boards were covered with tattered, faded blueprints. And weapons, armor, shields-war supplies all over the place, a lot of them only partially finished.

Hanging from chains far above the dragon's platform was an old tattered banner almost too faded to read. The letters were Greek, but Leo somehow knew what they said: bunker 9.