SELENA CRIED AS PERCY PULLED HER AWAY from the edge of the cliff, from where Annabeth had disappeared.

Selena didn't even notice the snap-snap-snap from the helicopter—the sound of gunfire.

Most of the Hunters scattered as tiny holes appeared in the snow at their feet, but the girl with auburn hair just looked up calmly at the helicopter.

"Mortals," she announced, "are not allowed to witness my hunt."

She thrust out her hand, and the helicopter exploded into dust—no, not dust. The black metal dissolved into a flock of birds—ravens, which scattered into the night.

The Hunters advanced on the demigods left in the clearing. The one called Zoe stopped short when she saw Thalia. "You," she said with distaste.

"Zoe Nightshade." Thalia's voice trembled with anger. "Perfect timing, as usual."

Zoe scanned the rest of them. "Five half-bloods and a satyr, my lady."

"Yes," the younger girl said. "Some of Chiron's campers, I see."

"Annabeth!" Percy let go of Selena and stood, "You have to let us save her!"

The auburn-haired girl turned toward him. "I'm sorry, Percy Jackson, but your friend is beyond help."

Selena struggled to stand and go toward the cliff, "You are in no condition to be hurling yourself off cliffs," the auburn girl stated, grabbing Selena,

"Let her go!" Percy demanded. "Who do you think you are?"

Zoe stepped forward as if to smack him.

"No," the other girl ordered. "I sense no disrespect, Zoe. He is simply distraught. He does not understand."

The young girl looked at Percy, her eyes colder and brighter than the winter moon. "I am Artemis," she said. "Goddess of the Hunt."

Percy stood there, dumbfounded, "Um... okay."

That was nothing compared to Grover. He gasped, then knelt hastily in the snow and started yammering, "Thank you, Lady Artemis! You're so... you're so... Wow!"

"Get up, goat boy!" Thalia snapped. "We have other things to worry about. Annabeth is gone!"

"Whoa," Bianca di Angelo said. "Hold up. Time out."

Everybody looked at her. She pointed her finger at all of them in turn, like she was trying to connect the dots. "Who... who are you people?"

Artemis's expression softened."It might be a better question, my dear girl, to ask who are you! Who are your parents?"

Bianca glanced nervously at her brother, who was still staring in awe at Artemis.

"Our parents are dead," Bianca said. "We're orphans. There's a bank trust that pays for our school, but..." She faltered. Selena guessed she could tell from all of their faces that they didn't believe her, "What?" she demanded. "I'm telling the truth."

"You are a half-blood," Zoe Nightshade said. Her accent was hard to place. It sounded old-fashioned, like she was reading from a really old book. "One of thy parents was mortal. The other was an Olympian."

"An Olympian... athlete?"

"No," Zoe said. "One of the gods."

"Cool!" said Nico.

"No!" Bianca's voice quavered. "This is not cool!"

Nico danced around like he needed to use the restroom. "Does Zeus really have lightning bolts that do six hundred damage? Does he get extra movement points for—"

"Nico, shut up!" Bianca put her hands to her face. "This is not your stupid Mythomagic game, okay? There are no Gods!"

Thalia stepped forward, "Bianca, I know it's hard to believe. But the Gods are still around. Trust me. They're immortal. And whenever they have kids with regular humans, kids like us, well... Our lives are dangerous."

"Dangerous," Bianca said, "like the girl who fell."

Selena's breath caught in her throat and Percy squeezed her hand. Thalia turned away. Even Artemis looked pained.

"Do not despair for Annabeth," the Goddess said. "She was a brave maiden."

"Is." Selena muttered,

"Excuse thee." Zoe snapped,

"No." Selena glared, "Annabeth is a brave maiden. She's not dead so don't act like she is." 

Artemis nodded, "If she can be found, I shall find her."

"Then why won't you let us go look for her?" Percy asked.

"She is gone. Can't you sense it, Son of Poseidon? Some magic is at work. I do not know exactly how or why, but your friend has vanished."

Selena nodded, "I can feel it too. She's not here."

"Oo!" Nico raised his hand. "What about Dr. Thorn? That was awesome how you shot him with arrows! Is he dead?"

"He was a manticore," Artemis said. "Hopefully he is destroyed for now, but monsters never truly die. They re-form over and over again, and they must be hunted whenever they reappear."

"Or they'll hunt us," Thalia said.

Bianca di Angelo shivered. "That explains... Nico, you remember last summer, those guys who tried to attack us in the alley in DC?"

"And that bus driver," Nico said. "The one with the ram's horns. I told you that was real."

"That's why Grover has been watching you," Percy stated, "To keep you safe, if you turned out to be half-bloods."

"Grover?" Bianca stared at him. "You're a demigod?"

"Well, a satyr, actually." He kicked off his shoes and displayed his goat hooves. Selena thought Bianca was going to faint right there.

"Grover, put your shoes back on," Thalia said. "You're freaking her out."

"Hey, my hooves are clean!"

"Bianca," Percy stepped towards the girl, "we came here to help you. You and Nico need training to survive. Dr. Thorn won't be the last monster you meet. You need to come to camp."

"Camp?" she asked.

"Camp Half-Blood," Selena stated, "It's where half-bloods learn to survive and stuff."

"You can join us, stay there year-round if you like." Percy offered,

"Sweet, let's go!" said Nico.

"Wait," Bianca shook her head. "I don't—"

"There is another option," Zoe said.

"No, there isn't!" Thalia said.

Thalia and Zoe glared at each other. Selena rolled her eyes. They couldn't get along for a single moment. They seriously hated each other.

"We've burdened these children enough," Artemis announced. "Zoe, we will rest here for a few hours. Raise the tents. Treat the wounded. Retrieve our guests' belongings from the school."

"Yes, my lady."

"And, Bianca, come with me. I would like to speak with you."

"What about me?" Nico asked.

Artemis considered the boy. "Perhaps you can show Grover how to play that card game you enjoy. I'm sure Grover would be happy to entertain you for a while... as a favor to me?"

Grover just about tripped over himself getting up. "You bet! Come on, Nico!"

Nico and Grover walked off toward the woods, talking about hit points and armor ratings and a bunch of other geeky stuff. Artemis led a confused-looking Bianca along the cliff. The Hunters began unpacking their knapsacks and making camp.

Zoe gave Thalia one more evil look, then left to oversee things.