A/N: I have a new favorite series: Percy Jackson and the Olympians. I read them all in one weekend and now I have an idea for a fic (go figure). This is a crossover fic with Artemis Fowl since I've wanted to write a fic with him yet haven't had any ideas. I thought it was cool that Eoin Colfer liked The Lightning Thief. You don't have to have read Artemis Fowl to understand this fanfic, but be warned:

WARNING! HERE THERE BE SPOILERS FOR ALL PERCY JACKSON AND ARTEMIS FOWL BOOKS!

Disclaimer: If I owned either the Artemis Fowl series or the Percy Jackson and the Olympians series, I wouldn't be sitting here writing this. I would be lounging beside the pool outside my mansion, counting my gold and laughing at the poor people who have to write fanfiction.

Rating: PG to PG-13

Genre: Adventure/Drama

Summary: The Lady Artemis has disappeared and it is up to three heroes to find her. With the help of two mortals who can see through the Mist, Nico di Angelo, Percy Jackson, and Annabeth Chase must play a most deadly game that will test everything they have.

Pairings: Percy/Annabeth, some onesided Nico/Annabeth, mentions of Thalia/Luke, mentions of Arty/Holly, some slight Arty/Juliet, and some Arty/Rachel

Fowl Play

Nico di Angelo gaped openly at the redhead in front of him. The green glow faded from her eyes and she blinked rapidly. Once she caught his expression, she grinned faintly.

"I take it you're surprised?" she asked. When she got no answer, she rolled her eyes and leaned forward, pushing his chin up gently to close his mouth. At her touch he stiffened and pulled back, closing his lips tightly. A dark frown clouded his face. She turned to the others in the room.

"What did it say?"

Annabeth Chase stepped forward, having memorized the prophesy instantly.

"Three heroes to seek the lost one fair,
The one of the Hunt who took the dare.
Eyes of two colors will see things through,
A plot of games he shall well brew.
And them the child of death shall lead,
If any or all is to succeed.
But he shall fall before the end,
Unless his fear away he send.
This begins the greatest test.
No one untouched will end the quest."

Nico ran his hands agitatedly through his dark hair. "That's about me, isn't it? The 'child of death' part?"

"Looks that way," Rachel Elizabeth Dare said with a slight grin. "Your first quest! You excited?"

Nico glanced over at her sharply. "Do I look excited?" he asked with an intense frown.

Rachel looked as though she was about to say something else, when Percy Jackson cut in quickly.

"Anyway, the 'three heroes' part . . . do you know who you want to take with you?" he asked, thinking he already knew the answer but wanting to change the subject.

Nico shrugged halfheartedly. "You and Annabeth I guess. You're the only heroes I know that well." The frown did not leave his face.

Percy knew what he meant. It had only been a few months after the final battle with Kronos, but already people had settled back into their usual routine. That included training, fighting monsters, gathering new half-bloods, and avoiding Nico. They did not do it on purpose, Percy knew. Nico had been a celebrity of sorts around the camp for several weeks, what with his convincing his father to join the battle and all. But with all the new kids coming . . .

They did not know Nico's great feat in persuading the god of the Underworld to fight for Olympus and had no reason to idolize him. They shrank away from his smell, for no matter how many times he bathed he still had a slight stench of death clinging to him. His intense dark eyes and sometimes creepy smiles did not help, and neither did his habit of wearing all black and insisting on carrying his sword everywhere.

"Nico, have you tried to be friends with anyone?" Percy had asked one time.

The boy had just shrugged. "I'm not popular or stupidly charming like you, Percy. Being around me . . . they all think it's too depressing. Or they just want me to conjure up a dead relative or something."

"Well, you can relate to that," Percy had said, probably unwisely.

Sure enough, Nico shut down after that and refused to answer any more questions.

Now he stood pacing in front of Chiron, Percy, Rachel, Annabeth, Grover, and Mr. D. Only Percy, Rachel, and Annabeth were watching him though. Mr. D and Chiron were playing pinochle and Grover was chewing dutifully on a soda can, trying his best not to appear like he was eavesdropping when he was supposed to be going over the notes taken from the last Cloven Elders meeting. He had come to talk to Chiron about a pollution problem they were having in Central Park, but he had been interrupted by an Iris-message from the god Apollo.

"My sister is missing," he told them with a look of tragic depression on his face. "Some guy said he was better at archery than her and she took it as a personal insult. She went to challenge him to a contest and we haven't seen her since. It's been two weeks . . . I'm so upset I can't even compose any haikus!"

They knew then that it was serious. It had then been Chiron's great idea to have Nico be the one to go out and find her. Before the boy had a chance to protest, he had called Rachel so the Oracle could speak to him. Now there was tense silence.

"Of course we'll go with you," Annabeth said with an encouraging smile. She gave Percy a sharp nudge and he nodded.

"Of course," he added with a smile of his own.

Nico just glanced at them and continued pacing. "I'm no good at leading," he said finally, stopping and spreading his hands out to the side in a helpless gesture. "Percy should be the one to do it."

"That won't do; it's your quest Mr. di Angelo," Chiron said without looking up from his cards.

Percy shrugged apologetically. "Sorry buddy.

"But I don't want to look for Artemis. She isn't exactly my favorite goddess in case you haven't figured that out." The look on Nico's face could have frozen Niagara Falls in a heat wave.

"Careful, boy," Mr. D warned, waving his hand and snatching a Diet Coke can out of the air. "Or you'll be struck down where you stand. Not that I'd care. But I'd have to clean up the mess. Then again I could always order someone else to do it. So go ahead. Curse at the gods. It'll be one less camper to put up with. In fact, why don't you take your friends too?"

Everyone ignored him. A fact which made him huff and bid wrong in the game.

"Is it because of what happened to your sister?" Rachel asked Nico sympathetically.

Nico just grit his teeth and went back to pacing. "Who's this other person in the prophesy? Maybe he can be the leader."

Rachel coughed suddenly. Percy glanced sidelong at her. "You know who the Oracle was talking about?"

She grimaced. "I have an idea," she said. "There's this kid I know. His dad does business with my dad. He's a prodigy. Real kid genius. He's only like fifteen, and he's already invented and done all this stuff. Real good thief too. He could steal your teeth and you wouldn't notice until three days later." She took a deep breath. "He's coming into town with his dad to do some business. We're supposed to go to a Gala performance of a Broadway show tomorrow night." She rolled her eyes. "My dad's been trying to set us up for years."

"I take it you don't like him," Percy said with a slight grin.

She glared at him. "He's annoying and stuck up. But I'll see what I can do to get him to meet with you guys."

"You think he'll be able to see through the Mist?" Nico asked suspiciously.

"If anyone can see through the Mist, it's Artemis Fowl."

"Another 'Artemis'?" Nico heaved a great sigh. "The gods must hate me."

Grover reached over, patted Nico on the back sympathetically and offered him a bite out of his can. He realized his mistake and blushed, dropping the can and digging an apple out of somewhere. Nico pushed the proffered food away and stormed out of the cabin. The others looked at each other. Most of their gazes fell on Percy. He stared back at them dumbly before asking,

"What?"

Annabeth looked pointedly at the door. Percy sighed. "Fine, I'll go after him." Standing, he made his way out the door and toward the cabins.

In a dark, shadowy part of the clearing was where Nico had chosen to have his Hades cabin built. Percy thought it looked depressing and creepy with its black and gray exterior and a human skull above the door. Fake of course . . . at least he assumed it was fake. He never actually worked up the nerve to ask. No wonder none of the new kids hung out with Nico. Sometimes just saying "the Son of Hades" gave people the willies.

Knocking gently, he carefully opened the door and peeked inside. Nico was seated on his bed, his back facing the door. Soft, mournful music played out of an iPod dock next to the bed, a woman's low, creepy voice moaning the loss of some loved one. Set up on a dresser was a line of figurines. Pieces of the game Nico used to play when he was younger. The gods were lined up according to their importance, but Percy noticed that Hades had been placed before Zeus. He hoped the head god of Olympus would not take offense to that.

"Nico? Can I come in?"

He heard no sound toward the negative or the positive, so he took a chance and stepped inside the cabin. Instantly a chill came over him. It felt as though a cold, dry wind circled the room. The place stank faintly of death. Percy was used to it by now, having hung around Nico for so long, but it was still rather unsettling.

"Hey buddy," Percy said, trying to control his goosebumps as he approached the bed. He noticed Nico looked perfectly normal, well as normal as Nico looked at least. He was still too skinny and pale and he had yet to cut his hair which hung shaggily down to brush the nape of his neck.

Percy sat gingerly on the end of the bed on the black bedspread. He glanced at the pillow which case displayed a skull and crossbones decal. He adverted his gaze and looked over at Nico, blocking out the creepy music.

"Are you scared?" he asked after a moment.

Nico raised and lowered one shoulder. Percy figured he would be, seeing as this was his first quest. It was sometimes hard to remember that the kid was only twelve years old. And Percy could remember how scared he was when he went on his first quest when he was twelve. Not to mention confused as heck. At least Nico knew about his specialness early on.

"Mad?" Percy tried again.

No response this time. He knew he hit something there. He sighed and pushed a hand through his messy black hair. "Look," he said. "I know you don't like Artemis and I know why. But this is a hugely important quest and you can't back out just because you don't like her. Think of her Hunters. Think of Thalia. Gods, Thalia must be seriously ticked off. She's probably still looking for her Lady."

Nico had to smile at that image. "Yeah, she wouldn't ever give up." He paused. "I say let her take care of it."

Percy sighed and rolled his eyes. "Come on, Nico. Quit acting like a baby. You're going on this quest and me and Annabeth will be right there along with you. So you've got nothing to worry about."

Nico looked thoughtful for a moment. "You promise you'll hold be back if snap and try to take her head off?"

"Oh, I totally promise. I'll knock you out if I have to." Percy grinned.

Nico grinned suddenly back. "Thanks."

"What are friends for?"

Percy clapped Nico on the shoulder and stood up to leave. "By the way, your music and cabin really creep me out."

A sinister gleam entered Nico's eyes and his grin faded to a dark smile. "Do they?"

Thoroughly freaked out, Percy left in a hurry.

Above the Atlantic a small, expensive jet made its way toward the city of New York, the lights from the cabin and cockpit glittering in the darkened sky. Inside a teenage boy, immaculately dressed, sat fingering a practically empty glass of iced tea. Beside him sat a tall blond, athletic looking girl, her hands tapping impatiently on the armrest beside her.

Across the aisle a dark haired man leaned his head against the wall of the aircraft, his eyes closed in slumber, a dark blue blanket draped over him.

"I do wish Father had chosen a different musical to go to tomorrow night. Mamma Mia! is not my choice for intelligent entertainment." The boy said in a bored tone, swirling the tea in the bottom of the glass leisurely.

"I think it's Mr. Dare's daughter's favorite."

"All the more reason to skip it and go to a gallery opening or something that appeals more to my artistic tastes."

The blond girl grinned slightly. "Now Artemis, you promised to behave on this trip. You promised both your mother, father, and Captain Short. I think sneaking off to a gallery opening would be classified under 'disobedience.'"

Artemis sighed. "You're right Juliet, of course. I did promise to behave. But if I can convince Father and Mr. Dare that going to a gallery opening would be much more dignified and better for reputation than attending a musical full of sex-deprived females pining after lost loves, then it would not be disobedience, but diplomacy."

Juliet snorted with laughter. Artemis's mouth twitched slightly. "Do you know when we're to land?"

The girl checked her watch. "It's another couple of hours I think."

Artemis nodded and glanced out the window, his expression almost wistful. Juliet watched his face carefully. She thought she knew what he was thinking about.

"I'm sure she misses you to," she said with a slightly teasing grin.

Artemis leaned back in his seat, closing his eyes and refusing to take the bait. "I wasn't thinking of anyone in particular," he said calmly. "I only wish Butler were here."

Juliet looked surprised for a moment, but then smiled fondly. "Yeah, he was rather disappointed when your Father told him to stay at home." She paused. "I'm sure he was looking forward to seeing Mamma Mia!." A slight snicker escaped her lips.

Artemis raised an eyebrow, his eyes still closed. "Considering the fact that Butler's sex life has been practically non-existent his entire life, I highly doubt he would relate. All due respect to Butler, of course."

Juliet stared down at Artemis for a moment before bursting out in laughter. It was apparently contagious for Artemis allowed himself a tiny chuckle.

"You're so lucky Butler isn't here right now," Juliet said.

"Somehow I don't think this topic would have come up if Butler were here." Artemis Fowl Senior opened his eyes and looked over at the two teens in the aisle across from his. His face was stern but his eyes twinkled. "I hope you do not expect to continue it with Miss Dare."

"Of course not, Father," said Artemis Fowl the Second, his eyes still closed. "I'm sure the topic of conversation with Miss Dare will be exceedingly more intellectual and dull."

"Glad to hear it," Mr. Fowl said with a slight smile. He straightened in his seat and pulled the blanket off his shoulders. "We shall be landing soon. I would gather up my things if I were you."

Juliet unbuckled her seat belt and began to put away the various books, notepads, laptops, and pens that had been scattered across the jet during the long flight. Artemis continued to keep his eyes shut, listening absently as his Father instructed Juliet on security detail for once they landed. His mind was really back home with his mother and brothers and Butler. He really did wish his old friend and bodyguard was on this trip with him. Juliet was great and really good at her job, but she was new to being his personal bodyguard and honestly things got awkward sometimes. Artemis dreaded to think of what would happen if he was attacked in such a place as a restroom.

Still, there was really nothing he could do about it and so he had decided to make the most of it. Besides, Butler had requested personally that Artemis come to see Juliet as a competent bodyguard in her own right and not just a replacement for himself. Artemis was going to honor that request to the best of his ability.

Before long the plane touched down in New York. Little did Artemis know as he exited the private jet that his visit to New York would change his life in many, many ways.

I have some cool plans for this story, but I don't want to take the time to write it all down if no one is going to read it. ;P So if you want this story to continue, please review so I know people are reading it.

To motivate ya'll to review, I won't be posting another chapter until I get at least three reviews. ;)