Author's Note: Here is a new story I've been working on for a while. It's a crossover between Indiana Jones and the Last Crusade (my favorite of the four movies) and Fullmetal Alchemist. I hope you enjoy the fanfiction!

Disclaimers: I do not own Fullmetal Alchemist or Indiana Jones. They belong to their respective owners.

Enjoy!

Chapter One - Parallel Worlds

"Brother! Please calm down before you go in there!" pleaded Alphonse as he followed an irritated State Alchemist down the halls of Central Headquarters.

"I don't want to hear it, Al," growled Edward, his foul mood showing all too clearly in his voice and composure. "I swear, when I see that ba-"

"Brother!"

"I'll punch that smirk right off his smug face, that as-"

"Brother!"

"And he'll regret ever sending us on that Godforsaken mission," finished Edward, ignoring his brother's attempts to stop his foul mouth.

Alphonse sighed in defeat as he reluctantly followed his seething brother, realizing that he reassured the surrounding soldiers slightly. At least if Edward's temper went off, they were sure Alphonse would hold him down; they hoped.

After a while, the Elric brothers arrived at their destination, the elder almost breaking down the door as he entered.

"Ah, Fullmetal, I see your back already," stated Colonel Mustang casually, leaning back in his chair, eyeing the young man.

"Don't give me that!" growled Edward, approaching the man with a dark glare. "Give me one good reason I shouldn't punch that damn smirk off your face."

"I'm your superior officer."

"Not good enough," snapped Edward, a smirk of his own spreading across his face. "I'm so going to enjoy this."

"Brother!" cried Alphonse, rushing to his side, ready to hold him back.

"And why would you wish to hit me?" wondered Mustang as he almost imperceptibly moved in his seat, prepared to dodge in case Edward made true to his promise.

"You sent us once again on a wild goose chase, that's why! Can you not get your facts straight before you send us somewhere?"

"When did the lack of facts ever stop you, Fullmetal?"

"They don't stop me, they irritate me beyond reason!" yelled Edward, slamming his hands on the Colonel's desk, almost breaking it, not that he would have cared.

"Fullmetal, what I think you fail to realize," began Mustang, seeming unfazed by the young man's outburst, "is that your entire quest is based on a myth, no matter how true it may be."

Edward breathed deeply as he glared towards the Colonel, in anger just boiling deep within him, threatening to burst out and take out its entire rage on the man in front of him.

Oh, how I hate him! thought Edward angrily.

"Archaeology is based on fact, not truth. If it is truth you're looking for, Professor Tyree's philosophy class is down the hall," explained Doctor Indiana Jones to his class.

Indiana continued until the bell rang, reminding his students to read the assigned chapters before motioning towards Marcus to come so he could show him what he had obtained.

"Marcus, I got it," he exclaimed softly, opening the drawer of his desk and pulling out the artefact.

"Wonderful, Indy! I knew you could do it!" replied Marcus, removing part of the cloth and examining the piece. "Just wonderful," he repeated.

"Do you know how long I've been after that?"

"Your entire life?"

"My entire life," agreed Indiana, his smile never fading.

A little later on, once Marcus had left, Indiana began packing his things to return to his office.

However, he stopped for a moment, a chill passing down his spine. He glanced around the room, sensing that he was being watched but found no one there. He brushed the feeling off as paranoia as he placed the last documents into his bag and closing it.

He was about to grasp the handle when he felt it once again. He whirled around, scanning the classroom but still found no one.

"Something is bound to happen today," he murmured to himself, frowning as he pulled the door open slowly, his gaze still on the room. "And I don't think I'll like it too much."

Edward stormed down the halls of Central Headquarters, his younger brother in tow. However, Alphonse did not dare say anything to the irritated blond in front of him until they were safely away from the military base and on a deserted street so that no innocent bystanders could feel the wrath of Edward Elric.

"Brother," called Alphonse softly, catching the young man's attention. "Are you still angry at the Colonel?"

"Of course I am, Al!" cried Edward, throwing his arms into the air in exasperation. "That man is out to drive me crazy! I just know it!"

"Now, Brother, I don't believe that," sighed Alphonse, stopping and looking down at the young man. "He really is trying to help us... I wish both of you would just stop fighting over such trivial things..."

Edward was about to reply to that statement when a shadow moved in the alley several feet away from the siblings.

"Who's there?" yelled the young man, taking a cautious step towards the alley. "Show yourself!"

"And why should I follow your orders?" wondered the hidden person, a slight hint of laughter in his voice. "Hein, Pipsqueak?"

"Envy!" growled Edward, clenching his fists.

The young man made to dash towards the source of the voice when Alphonse yelled out in surprise. Edward whirled around towards his brother only to see him being carried away by the large homunculus, Gluttony.

"Leave him alone!" yelled Edward, running after his brother and his captor.

Indiana seemed to be right when he thought something would happen that day. However, he would never have imagined it to be such shocking and revealing news.

One; that the Holy Grail was more than the bedtime story he had thought it had been all these years. That it really did exist and that he was a step closer to discovering it.

Two; that the only reason he was a step closer was because his father had discovered new evidence leading to its hiding place.

And third; because his father had been closer to discovering the location of the Holy Grail, he had disappeared without a trace in Venice.

"Could this day get any worse?" he mumbled, staring into the clear sky, sensing that there was one last thing to happen that day, something big. "Bigger than my own father getting kidnapped? Now that I have to see," he murmured, shaking his head.

Edward cautiously made his way through the dark alley, his breathing slightly laboured from the running. Where did they go? He thought, angrily, trying to make out any shapes through the darkness.

"What the hell did Envy want?" growled Edward, squinting against the darkness though he did trip over some of the trash spread across the floor. "When I find him, I'll kill him with my bare hands."

"Ah... The Pipsqueak still hasn't given up!" laughed a voice further away, catching Edward's attention.

"Where are you, Envy?" shouted the blond alchemist, his patience having worn thin ages ago. "And where is Al? What have you done with him?"

"Oh, your brother is safe, don't worry. We dropped him back off at HQ where your dear friend the Colonel should be finding him sometime soon," explained Envy, finally leaving the safety of the shadows. "However, if I were you, I would be worrying about my own well-being at the moment seeing as you are outnumbered in a dark, isolated alley."

Edward's eyes widened slightly upon hearing that the two of them were not alone. He whirled around, trying to make out any other shape there and, within moments, he realized that he was indeed surrounded by several homunculi.

He cursed heavily under his breath.

"Now, no need for such language here, Edward," reprimanded Lust, an evil smirk on her lips.

"We just need you out of the way for a while," explained Envy, approaching the tense alchemist.

"Yeah, like that will ever happen," snapped the young man, positioning himself into a fighter's stance.

"Oh, believe me, it will," laughed Envy, moving towards him casually.

Edward growled in annoyance, ready for a fight. However, as Envy lunged towards him, Lust extended her nails, slapping them in the back of the young man. He yelled out in surprise, stumbling forward, right into Envy's oncoming fist. It made contact the side of Edward's face and he fell to the floor, groaning in pain.

The other homunculi took this opportunity to attack the defenceless alchemist, pummelling him to the ground each time he attempted to stand.

The one sided battle continued for several more minutes until Envy marched up to Edward, grabbing him by the collar of his shirt and lifting him off the ground.

"See you around, Pipsqueak," laughed Envy, tossing the young man further down the alley.

Just as Edward landed, the transmutation circle carved into the alley floor under him activated. The young man gasped in surprise as he looked down, blue electric light erupting from every corner of the carving. Edward could only catch a glimpse of Envy's wicked smirk before the light grew too bright and the young man lost consciousness.