THE HUNTERS PILED INTO THE VAN. They all crammed into the back so they'd be as far away as possible from Apollo and the rest of the highly infectious males, Bianca sat with them, leaving her little brother to hang in the front with them, which seemed cold to Selena, but Nico didn't seem to mind.

"This is so cool!" Nico said, jumping up and down in the driver's seat. "Is this really the sun? I thought Helios and Selene were the sun and moon gods. How come sometimes it's them and sometimes it's you and Artemis?"

"Downsizing," Apollo said. "The Romans started it. They couldn't afford all those temple sacrifices, so they laid off Helios and Selene and folded their duties into our job descriptions. My sis got the moon. I got the sun. It was pretty annoying at first, but at least I got this cool car."

"But how does it work?" Nico asked. "I thought the sun was a big fiery ball of gas!"

Apollo chuckled and ruffled Nico's hair. "That rumor probably got started because Artemis used to call me a big fiery ball of gas. Seriously, kid, it depends on whether you're talking astronomy or philosophy. You want to talk astronomy? Bah, what fun is that? You want to talk about how humans think about the sun? Ah, now that's more interesting. They've got a lot riding on the sun... er, so to speak. It keeps them warm, grows their crops, powers engines, makes everything look, well, sunnier. This chariot is built out of human dreams about the sun, kid. It's as old as Western Civilization. Every day, it drives across the sky from east to west, lighting up all those puny little mortal lives. The chariot is a manifestation of the sun's power, the way mortals perceive it. Make sense?"

Nico shook his head. "No."

"Well then, just think of it as a really powerful, really dangerous solar car."

"Can I drive?"

"No. Too young."

"Oo! Oo!" Grover raised his hand.

"Mm, no," Apollo said. "Too furry." He looked past Percy and Selena and focused on Thalia.

"Daughter of Zeus!" he said. "Lord of the sky. Perfect."

"Oh, no." Thalia shook her head. "No, thanks."

"C'mon," Apollo said. "How old are you?"

Thalia hesitated. "I don't know."

It was sad, but true. She'd been turned into a tree when she was twelve, but that had been seven years ago. So she should be nineteen, if you went by years. But she still felt like she was twelve, and if you looked at her, she seemed somewhere in between. The best Chiron could figure, she had kept aging while in tree form, but much more slowly.

Apollo tapped his finger to his lips. "You're fifteen, almost sixteen."

"How do you know that?"

"Hey, I'm the god of prophecy. I know stuff. You'll turn sixteen in about a week."

"That's my birthday! December twenty-second."

"Which means you're old enough now to drive with a learner's permit!"

Thalia shifted her feet nervously. "Uh—"

"I know what you're going to say," Apollo said. "You don't deserve an honor like driving the sun chariot."

"That's not what I was going to say."

Selena looked at Thalia nervously. Ever since she was a kid, Thalia was afraid of heights. Ironic, being the child of the sky God, but it's true.

"Don't sweat it! Maine to Long Island is a really short trip, and don't worry about what happened to the last kid I trained. You're Zeus's daughter. He's not going to blast you out of the sky."

Apollo laughed good-naturedly. The rest of them didn't join him.

Thalia tried to protest, but Apollo was absolutely not going to take "no" for an answer. He hit a button on the dashboard, and a sign popped up along the top of the windshield. Selena had to read it backward (which, for a dyslexic, really isn't that different than reading forward). She was pretty sure it said WARNING: STUDENT DRIVER.

"Take it away!" Apollo told Thalia. "You're gonna be a natural! Speed equals heat," Apollo advised. "So start slowly, and make sure you've got good altitude before you really open her up."

Thalia gripped the wheel so tight her knuckles turned white. She looked like she was going to be sick.

"What's wrong?" Percy asked her.

"Nothing," she said shakily. "N-nothing is wrong." She pulled back on the wheel. It tilted, and the bus lurched upward so fast Percy fell back and crashed against Selena,

"Jeez, Percy." Selena groaned,

"Sorry."

"Slower!" Apollo said.

"Sorry!" Thalia said. "I've got it under control!"

Percy managed to get to his feet. Selena turned and looked out the window, she saw a smoking ring of trees from the clearing where they'd taken off.

"Thalia," Percy said, "lighten up on the accelerator."

"I've got it, Percy," she said, gritting her teeth. But she kept it floored.

"Loosen up," He told her.

"I'm loose!" Thalia said. She was so stiff she looked like she was made out of plywood.

"We need to veer south for Long Island," Apollo said. "Hang a left."

Thalia jerked the wheel and Selena fell into Percy, "Payback." She smirked as she tried to sit up again,

"The other left," Apollo suggested.

Selena made the mistake of looking out the window again. They were at airplane height now—so high the sky was starting to look black.

"Ah..." Apollo said, and Selena got the feeling he was forcing himself to sound calm. "A little lower, sweetheart. Cape Cod is freezing over."

Thalia tilted the wheel. Her face was chalk white, her forehead beaded with sweat, "Thalia, you need to calm down."

The bus pitched down and somebody screamed. Now we were heading straight toward the Atlantic Ocean at a thousand miles an hour, the New England coastline off to their right. And it was getting hot in the bus.

Apollo had been thrown somewhere in the back of the bus, but he started climbing up the rows of seats.

"Take the wheel!" Grover begged Apollo.

"No worries," Apollo said. He looked plenty worried. "She just has to learn to—WHOA!"

Selena saw what he was seeing. Down below them was a little snow-covered New England town. At least, it used to be snow-covered. As she watched, the snow melted off the trees and the roofs and the lawns. The white steeple on a church turned brown and started to smolder. Little plumes of smoke, like birthday candles, were popping up all over the town. Trees and rooftops were catching fire.

"Pull up!" Percy yelled.

There was a wild light in Thalia's eyes. She yanked back on the wheel, and Selena held on to the seat. As they zoomed up, Selena could see through the back window that the fires in the town were being snuffed out by the sudden blast of cold.

"There!" Apollo pointed. "Long Island, dead ahead. Let's slow down, dear. 'Dead' is only an expression."

Thalia was thundering toward the coastline of northern Long Island. There was Camp Half-Blood: the valley, the woods, the beach. She could see the dining pavilion and cabins and the amphitheater.

"I'm under control," Thalia muttered. "I'm under control."

They were only a few hundred yards away now.

"Brake," Apollo said.

"I can do this."

"BRAKE!"

Thalia slammed her foot on the brake, and the sun bus pitched forward at a forty-five-degree angle, slamming into the Camp Half-Blood canoe lake with a huge FLOOOOOOSH! Steam billowed up, sending several frightened naiads scrambling out of the water with half-woven wicker baskets.

The bus bobbed to the surface, along with a couple of capsized, half-melted canoes.

"Well," said Apollo with a brave smile. "You were right, my dear. You had everything under control! Let's go see if we boiled anyone important, shall we?"