So this was just an idea that popped into my head, I decided to roll with it. I haven't written fanfictions since high school, so I'm going to be pretty rusty at it. Bear with me, and my attempts at writing please.

Sally Jackson was in a dilemma. After her brief affair with Poseidon, she was lost at what to do. The sea god had told her that her unborn son's power will attract the monsters and other denizens of his world, the world that no mortal could possibly live in. She simply wasn't equipped to defend her unborn son against both mundane threats like homelessness and starvation and mythical threats like gods and monsters. Who could be.

She was a 20 year old woman, on her own in the world, with no way of doing anything. The issue tormented her life, and for weeks, she tried to come up with a answer. At Montauk, she stormed down to the seashore, ankle deep in the white foam.

To anybody else, she would've seemed crazy. A young woman, screaming at the sea, begging it to help her. She did this for a week, periodically coming back to stare into the sea, and beg. Nothing. Poseidon had forsaken her, and his son.

One day, as she pulled up in her beat up car near the beach parking lot, ready to conduct what had become a daily ritual, she spotted an unusual sight. Normally, she was alone, but tonight, something was different. A column of men ran beside the sea, with a taller man dressed in military fatigues barking orders.

She sat on the front of her car and watched them. Inspiration hit her. She could solve all her problems with one metaphorical stone. She would join the military,

She'd read of family programs offered by the military to full time soldiers, able to live on base. What could be safer than a base owned by one of the, if not the most powerful militaries in the world?

The next afternoon, she walked into her recruiting office. As a 20 year old woman, still in her physical prime, she was taken seriously. As she had become pregnant very recently, there was no physical signs yet.

The recruiting officer instantly took note of this applicant.

Her fiery eyes spoke of determination, and strength of character.

"What can I do for you today ma'am" The officer spoke, looking intently at her.

Sally pursed her lips. No turning back now.

"I'd like to enlist in the armed forces of the United States sir" She spoke firmly.

"Any idea what branch?" The officer asked, glancing down at the assorted pamphlets on the desk.

That question brought her to a halt. She wanted to join the military, but she hadn't considered what branch she wanted to join.

"No sir, I don't".

"Have you considered the Navy SEALs?" The officer asked, a gleam in his eye.

Sally considered this carefully. She was going to start showing signs of pregnancy very soon, and going through special forces training while under that kind of strain was going to be hell. Her thoughts drifted back to her unborn son, and she made up her mind.

"Now I have. I'd like to enlist sir."

Those words changed her life, and the mythological world's future, forever.

Training was brutal. 24 weeks of hell. Physical and mental torture. At least she didn't have to worry about her pregnancy.

For some divine mythological reason that Sally chose not to think too hard on, she actually wasn't physically affected by her pregnancy. It anatomically made absolutely no sense, but she chose not to think too hard on it. After all, was a pregnancy with no physical signs really too hard to believe among a mythology where goddesses were born out of people's heads?

As she advanced through her training, her anger at Poseidon for abandoning her, and her determination to protect her son, her motherly instincts, fueled her. As both men and women applicants washed out, she persevered.

In physical exercises, she advanced quickly, her body began to build muscle, and she became nearly unrecognizable from the timid and dependent woman from before. She gained confidence and brotherhood/sisterhood among her comrades. In marksman exercises, she became an amazing shot, and she was offered a position in sniper school, which she accepted.

If training to be Navy SEAL was brutal, training to Navy SEAL sniper was murder. Hours, even days of lying perfectly still despite her instructor's torments and her aches and pains was not just physical tortue, it was mental too. Yet, she persevered, as usual.

During this torture, she met her future husband, a man named Justin Grant. He was a charming, honourable man, and they quickly became enamoured with each other. Despite their training consuming virtually almost every waking minute of their lives, they made it work.

In one combat exercise on base, everything changed. Sally collapsed, blacking out, and when she woke up, she was in a medical tent with a medic holding a baby in his arms.

It was seemingly a medical miracle, that a baby was born of a woman with no physical signs, but, as it happened in the military instead of a hospital, it was quickly dismissed.

Sally gained the nickname Mary, due to this miraculous medical occurrence, and she embraced it fully. In training, it became her callsign. Due to the nature of their relationship, Justin thought the baby was his, and Sally did nothing to dissuade him of this notion. In her opinion, it was his. Justin was twice the man, and thrice the father that Poseidon could ever be.

In light of her successes in the field, and her promise as a soldier, she was offered a position, as she'd hoped, to live on base with her family. She accepted. Her now boyfriend, Justin, moved in her, and when it came time to deploy, the military made sure that they were deployed at different times and in different units.

Even though that the military did this to ensure that there was no unnecessary distractions among its soldiers, it worked for them, as one parent would always be home to care for the baby, now named Perseus, Percy for short.

Percy grew up as an "Army Brat", a baby born and raised on a military base. When he was only 3 years old, Percy could walk, talk, and due to the influence from his father and his friends, fire a firearm.

When he was 10 years old, Justin was killed in a combat operation in Iraq. His loss was a heavy one, and it changed Percy's outlook on life forever. Percy began to commit himself more at everything. He would honor his father's death. In school, Percy applied himself vigorously, and due to the money gained by his mother, he was able to afford aids to help him with his ADHD and Dyslexia.

When he was 12 years old, his history teacher was inexplicably replaced by a strange man in a wheelchair named Mr. Brunner.

A/N Okay, so that was pretty much the background to this story. I'm Canadian, so I honestly don't know much about the American military, so most of this admittedly was written with little knowledge. The first part of the actual story will begin here.

Percy Jackson casually walked behind his classmates and surveyed his surroundings. He was on a fieldtrip to a Greek history museum, funded by Yancy Academy.

He was especially fascinating by the Ancient Greek weaponry. Well, any weaponry anyway. Being born and raised in a military base does that to one.

A spear caught his eye, and he ambled over towards it, looking it up and down. The bronze tip caught his eye, and he studied it for a long moment. It didn't seem like regular bronze, it seemed more… powerful. Older. Shrugging the feeling over, he turned his attention back to Mr. Brunner, who was talking about Kronos and his children.

"Ah, Percy, there you are. Thought we lost you for a second there. Tell me, what does this depict?" Mr. Brunner asked jovially, gesturing to the large stone slab behind him.

Percy enjoyed Mr. Brunner's classes, and he liked the man himself, he was a likable man. Studying the slab for a second, he responded to his question.

"Sir, it depicts Kronos fighting the Olympian gods whom he had attempted to eat to prevent them from overthrowing him. However, as this shows, it didn't really work out for him."

"..Excellent answer, Percy" Mr. Brunner exclaimed, marching onwards, the students following him.

Grover walked up to Percy's side. Percy glanced at him, before continuing to walk forward.

"What's up man?" he asked Grover.

"Ms. Dodds seems very pissed at you for some reason" Grovet said nervously, "It's almost as if she wants to kill you."

Glancing at the teacher in question, Percy grimaced. Judging by the glare his algebra teacher was giving him, she didn't just look pissed, she looked downright furious. Murderous, even.

Reaching down into the waistband of his pants inconspicuously, Percy felt the cool metal of his personal defence weapon, the grey gunmetal calming him, reassuring him.

It was as much of a good luck charm as it was a weapon to him. The Sig Sauer P226, the standard firearm of choice for Navy SEALS. It was especially valuable to him as it was the one his father, Justin, carried. Although it might be brushed off by some as needless sentiment, he felt that as long as carried the weapon, he'd be carrying a part of his father with him. Plus, it was a great weapon, his father had modified it greatly. While most versions of the firearm chambered either .40 S&W, .357 SIG, or the standard 9mm Parabellum, his father had modified it to chamber the 10mm auto round.

The 10mm auto round was decommissioned due to the fact that it kicked like a mule in the average shooter's hands and was generally too large of a cartridge for most people to handle in a pistol, but his father had managed to get his hands on a case or two of the rounds. It made the pistol tough to use, but extremely powerful. As Percy's mother had told him when she had given him the pistol, after training rigorously with smaller caliber firearms, "If you use that gun, whatever you hit will be down for the count."

The feeling of the weight in his waistband gave him courage, and Percy smirked at his teacher, before sauntering off to follow behind his fellow students.

As he listened to Mr. Brunner give another impromptu lecture, looking somberly upon a tombstone, Ms. Dodds appeared behind him, and put her hand on his shoulder, squeezing tightly.

"Excuse me, Mr. Brunner, I'll be having a quick private word with Percy Jackson here" Ms. Dodds said cooly, before practically dragged Percy off into a vacant room.

Percy quickly shrugged out of her grip as they entered the room, and crossed his arms.

"What did I do this time Ms. Dodds?"

Ever since he entered Yancy Academy, Ms. Dodds had hated him for some reason. Percy never really understood why, but he shrugged it off as another teacher with a strange grudge against him.

"Tell me, did you take the bolt" snarled the teacher.

"What are you talking about" Percy asked incredulously.

Ms. Dodds snarled and suddenly her form shifted and warped, her clothes tearing off her to reveal a monster. It was a humanoid avian monster with claws and fire in its eyes. It divided towards him, and Percy yelped, barely dodging his insane algebra teacher as she rocketed past him.

"What the fuck are you" Percy yelled, drawing his P226 and aiming it at the… thing? It resembled one of the carvings in the museum he had seen early, but he couldn't place it.

Ms. Dodds snarled and dived towards him again, but this time Percy was ready. All the lessons he had learned at the range since he could walk proved their worth as Percy steadied his arms, avoiding locking his elbows, and fired his pistol. His mother said never to fire it unless absolutely necessary, but he was pretty sure that this counted as an "absolutely necessary situation".

The slide rocketed back, the flash lit up the world, and the ejected casing flew past his face even as the recoil jolted his arms. Ms. Dodds took the powerful round directly in her sternum, and she flopped to the ground, seemingly dead.

Keeping his pistol up, Percy walked towards the prone monster, keeping his gun trained on Ms. Dodds.

The monster suddenly lunged at him, and Percy staggered back, surprised.

"This thing just took a 10mm auto to the chest and is still coming for more!" he thought frantically, looking around for something to use to defend himself.

"What ho" somebody shouted, and Percy looked in shock as Mr. Brunner threw a bronze sword at him. It flipped through the air and embedded itself in the marble flooring even as Percy staggered back from the monsters lunge. Percy ripped the sword out of the flooring and held it with one hand. Firing his pistol was about to become a lot harder.

Ms. Dodds circled back around and came at him. Percy raised the gun, and fired it, his arm shooting upwards due to the recoil. The monster came hurtling down, a hole in its wing, and Percy grinned. Running towards the prone monster before it could recover, he stabbed downwards, holding the sword in an icepick grip.

Wailing in pain, the monster dissipated into golden dust, and disappeared, and Percy was left standing alone in the room with his gun in his hand along with the sword, two spent casings idly rolling, slowly coming to a stop.

Percy turned to the doorway, "Mr. Brunner, what was tha-" he trailed off, seing as Mr. Brunner was no longer there.

Absentmindedly picking up the spent casings and shoving them into his pocket, he holstered his pistol before staggering out of the room, grabbing the sword along the way.

Even as he watched, the sword shrank into a pen, and he wondered just what was in his lunch, and thought about how much his mom was going to kill him for doing drugs.