Disclaimer: Nope, just a fanfiction writer. I would be a man, if I owned it, wouldn't I? So nope.
Story: Poseidon couldn't let Percy go unprotected any longer. What better way to escape death than to ask a favor of the God of Death himself? Now Thanatos sends out his only demigod son to play bodyguard for the Son of Poseidon. Only Harry Potter hasn't quite recovered from his stay in Azkaban.
Set AU for HP after the fifth book, AU for PJO from the third book onwards.
Spoilers: Definitely for the first book for now.
Warnings: Cursing and violence for now…hm, just in case since I'm usually writing it, bit of crazy humor, perverted humor, morbid or sarcastic humor, and maybe some sexual situations…
Pairings: Hermes/Harry, Luke/Percy, Chris/Clarisse, Charles/Silena…

Saints and Angels
Chapter One: All Saints on Judgment Day

This was a highly uncomfortable place for him to be, but Poseidon couldn't afford a delay and this was extremely important.

But one doesn't bother the God of Death for just anything.

His brother Hades had no idea he was there to visit the minor god and important member of the Dark Family, but Poseidon didn't want to alert Hades to his intruding upon his realm. He never wanted to be in the Underworld, much less in this part of it. And he was pretty sure Hades wouldn't take well to him trying to coerce such a powerful god under the Lord of the Dead's rule to grant him a favor.

But Percy was his son, his most treasured son, and he couldn't let something happen to him.

That's why, even as Death himself stared him in the eye with such fathomless depths, he stood his ground and confronted Thanatos.

"What do you seek, Earthshaker?" Thanatos' voice was soft, but no less spine-chilling. It reminded him of satin and silk; smooth and soft, and yet so easily quick to constrict. He remembered Percy once telling him that he'd thought Hades' voice sounded like velvet and danger. The contrast and similar feel of those two gods brought a frown to Poseidon's face, but he quickly made himself look neutral once more.

So alike the two, but Hades' (because how powerful and encompassing his power was in this realm) was heavier and more obvious in its threat, while Thanatos' was more quiet and subtle in its feel. It was very understated and deviously deceitful in how simple and unassuming it was.

Poseidon and Hades were powerful gods and had authority over Thanatos, Hades more so, but Death was not a laughing matter.

How eerie the Dark Family was.

"I wish to plead a favor from you, Thanatos," Poseidon started out cautiously, watching the other god with wary but tired eyes. "Percy has become my most favorite son and I cherish him so much, but I fear that this war will take him soon. For only until this war, I promise, please grant him immunity from your judgment just yet."

Thanatos studied him closely, dark voids for eyes seemingly peering into Poseidon. And then the god smiled mirthlessly, bringing a shiver to Poseidon's body.

"I, myself, cannot interfere. But I have a son, my only precious mortal son. He will help you. I shall send him and he will protect Perseus. Death shall not touch him, not until it is his time."

Poseidon smiled gratefully and even bowed slightly in thanks. Thanatos merely nodded in acknowledgement. Poseidon left there quickly, and to all else it was as if he had never been there.

Thanatos just looked up and hoped his son was up to the task. He may not care for much else, except perhaps the others in the Dark Family, but Harry Potter was his most treasured gift.

He teleported to his son's manor in the secreted village of Fern, just 25 miles away from the village of Hogsmeade, 25 ½ from Hogwarts itself. His son's home was heavily guarded and hidden, so he had no fear for his son or of being seen himself. He traversed the lonely halls of the manor, seeking his son in the main library of Harry's home, and coming upon Harry's quiet figure sitting by one of the many windows in the room and gazing dazedly outside.

"Harry," he hummed comfortingly.

Still, Harry reacted violently, darting away from the window and ducking behind a bookshelf, a bullet and a blaze of color shooting at Thanatos. The god merely stood there, the spell moving passed him and the bullet disintegrating before it even reached him.

"Harry, it's your father."

Harry tentatively stood up, eyes warily looking at Thanatos as a weary air settled over his son. The boy, man now really, was no longer gaunt and starved-looking, but he looked too tired. He also knew if Harry was around anyone else other than him, his son would be entirely too guarded and tense, too cautious and ready for an attack from anyone. Harry didn't look as disturbed as he had when Thanatos first met him, but there was still a haunted emotion if you looked deeply enough into his eyes.

"Father," Harry greeted solemnly. "How may I help you?"

Thanatos smiled softly, "Unfortunately, I didn't come here for my usual social call. A fellow god, one of the Big Three in fact, has asked me to spare his son's life for at least the war I've told you about. I cannot do anything, but I wonder…will you do so in my stead, my son?"

Harry smiled back thinly, "If you send me, then yes I will. Say so."

"His name is Perseus Jackson. He lives in New York with his mother. He should be 14, maybe still in school right now. Similar features to yourself when you were younger, you might say, though you've outgrown your unruly hair and his eyes are more of a sea-green than the vivid emeralds you have. He is the Son of Poseidon, and I wish for you to protect him."

Harry's thin smile became grim, "Then I shall leave immediately and find him, Father."

"Only if you want to, Harry," Thanatos said quietly.

Harry's face became a little dazed, seemingly lost in thought or memories.

"You saved me from my hell, I shall save you and the others from yours," Harry murmured distractedly.

Thanatos refrained from shaking his head, only lightly ghosting the back of his fingers against Harry's cheeks fondly.

"Call upon me, and unlike the other gods I will come to your aid. I will never forsake my son, never again," Thanatos leaned forward and pressed his forehead against Harry's affectionately.

Harry sighed and leaned forward as well, and the two of them stayed like that.

Thanatos remembered. Oh, he remembered Azkaban quite well. It was an abomination, never meant to have been made. Not approved by himself or Hecate. Death drew there quite frequently, and it was on one of those pulls where he finally met his son –a son he thought was already dead, with his mother and his surrogate father in the Elysium Fields.

A son who was near death and hung to life with a desperate sort of grip, and even still now with one that wasn't obvious unless you really knew him.

He had only been seventeen. Just seventeen. And he was trapped in that hell for two years, the Dementors readily coming to him in spades –even if it meant ignoring the other prisoners. And his son had had no protection against it. In fact, Harry's mind had been weakened by the numerous mind assaults from that man that even his natural defenses were too weak to provide any sort of defense, and he had never really recovered from it or had been helped healed. So it was –with two years until Thanatos had been drawn to where he first met a pale youth with haunted green eyes, and looked like Death had already come and gone.

And yet Thanatos was still there.

He didn't care about the 'gods not interfering with mortals rule'; instead he defied it and took his son away from there himself. He was a 'minor' god and they wouldn't pay any attention to anything he wished to do. He took advantage of that for Harry.

At first, he had thought he was too late. But slowly but surely, his son regained his health and began to come back to life. His awareness sharpened from the magical coma he had induced himself in, helping to sustain his body and help his mind a little with magic. But it couldn't do much for the effect of the Dementors. They came and most of them never left, and Harry was left to fend for himself. Without food or water, or even the will or ability to move, that magical coma served to sustain him for all those years.

And then his Harry started his slow trek to eating normally, starting with liquids until he could eat solid food. He drank magical nutrients to help him along, as well as other healing potions. When he was a little better and up to it, Harry would take jogs around Thanatos' home, and some light exercise. Then he was up to his old routine, rigorously working out like he had during the war. He read in the evenings, but he was always quiet. He never spoke unless prompted to by Thanatos.

This was not the son he had wanted to know.

By no means did he regret or wish for any other son, he had only wished to know the Harry before. A happy and carefree Harry.

He looked into Hecate's mirror and saw nothing but hardship. He was angered by what he saw and wanted to come to all of those who had dared harmed his son, see how they liked facing Death. But he forced his temper into a simmer, because his son needed him and he needed to be there for him.

It took five years since he'd retrieved Harry, for him to be back to any sort of normalcy or able to interact calmly with anyone. At twenty four, Harry had become shy and still on edge. Things hadn't changed that much in the two years since, where his now twenty six year old son had lived in this mansion for those past years. He'd been worried when Harry had moved here, but two years had proven that Harry preferred his solitude. After everything that's happened, Thanatos understood, though he wished he had been an exception. And slowly, he had become so. But it had been very slow progress and it aggrieved him so.

"Will you be okay?" Thanatos murmured.

"I'll be fine."

The death god tensed. Harry wasn't used to being social and this unofficial Quest he'd given him required Harry to be in the presence of people longer than he could probably handle. Thanatos knew that answer wasn't really sincere, but he appreciated his son trying to reassure him.

"Remember the Occlumency Hecate taught you personally," Thanatos let it go. "It'll help. Don't forget everything you've been taught, even what those idiot mortals taught you." He refrained from sneering, even though he wanted to badly.

"Yes, Father," a hint of amusement leaked into Harry's voice and Thanatos relaxed at that.

Another improvement.

"Then I'll leave you to it, Son. These are the addresses; I'll be looking out for you, so try to be careful. May the Fates continue to be with you, Harry."

He vanished hesitantly, unwilling to leave his son so soon.

But now it was up to Harry to figure out how to get to Percy, and how he could stick by his side without suspicions of what a twenty six year old man was doing with a fourteen year old. And that didn't even include getting Percy to trust him.

He sighed to himself, trying to think of an appropriate form to assume. They'd drilled in him on how to be an animagus, and being the freak he was…well, that venture turned out to be a pain.

"Morphing freak," he muttered to himself, eyes darkening.

He held his wand tightly and apparated to New York, right next to the Empire State building. He took a cab to the school address and resumed thinking about what form to take. A block away from the school, he got out of the cab and hid in an alley. He nodded to himself and changed into a small cat with white fur and green eyes. He could sometimes manipulate the color of the hair, but never his eyes. His eyes were always green, no matter what form he took.

He trotted along the sidewalk with a jaunty step, quickly moving in and out of people's feet and legs as he passed them all and went around several other obstacles in his path. He took off into a running start and soon enough he'd reached the school. It was by luck that he came upon the very boy he was assigned to protect, wandering around idly as he gazed around in boredom and unconsciously trailed his fingers across the lockers as he passed them.

Harry glanced around, then strutted closer and wrapped himself around Percy's legs, purring and trying to act like a cat, and yet still watch closely. Percy gawked amusingly, turning an endearing red, before hesitantly bending down and picking him up. Cradling him gently in his arms, Percy looked around in confusion before moving along. Harry was just content to be carried around.

It was much, much easier interacting as a cat. A cute, cuddly cat.

"What are you doing here, little guy? I hope you're not really a monster in disguise out to get me," Percy muttered.

Harry batted a paw at him in annoyance, though Percy ducked away with lips that were twitching upwards.

"Sorry, sorry. Bad luck, you know? What should I call you, little guy? I doubt I can keep calling you that, or 'cat.' Or 'hey you!'"

Harry discreetly rolled his eyes, hiding behind a paw. Composing himself quickly, he patted a paw against his shoulder and arm, and even his head.

Percy blinked.

"…Fur?"

Harry patted himself again.

"Fur…Fur…Fur-Furby? Furby?" Percy tried.

Harry tried not to look at him incredulously, seeing as how a cat should not be able to do that. Even McGonagall. Harry snickered at that thought. Heee~ McGonagall-Cat…

The wizard-as-a-cat let out a loud 'Meorrow!', inwardly laughing to himself. Calming down, Harry swatted at Percy's own hair next.

"H-hey! Watch it!" Percy leaned back, eyes wide.

Harry nimbly leaned up and stretched, grabbing a piece of Percy's hair with his mouth and chewing contentedly.

Percy was stumped, but started asking tentatively.

"Hair? Hair-ry? Hairy…Harry?"

Harry almost pouted to himself, but let go of Percy's hair and settled down in the boy's arms, curling up and closing his eyes. Percy sighed in relief and started petting his back, drawing purring from him.

"You're a smart little thing, aren't you? Weird…Okay, Harry. Let's go see Paul. I think his summer class might be close to being over now. I see people clamoring through the windows in the doors," Percy said, hurrying up a bit. "This is where I'll be going to school this year, after summer camp. I wonder if I could bring you…I've never had a pet before…"

Harry just licked his paw a couple times before returning back to his position lazily.

He went with Percy to meet Paul Blofis, Percy's Mom's boyfriend, who looked questioning at the not really a cat. Percy explained his appearance and Paul said that he'll talk to Sally about it, and that she'll probably love the idea of a cat. The little bit of suggestion magic really was negligible…

It was coming a bit nicely with a pretty little invisible bow for Harry.

It wasn't long until he'd integrated himself into their lives as Harry the Abnormally Smart Cat. They'd already gotten him a collar with a tag, learned that he was picky with his food and only ate human food, and had tried to take him to the vet. Mysteriously, every time, Harry always seemed to disappear for awhile…

Summer had just started and Harry listened to how the orientation for Goode High School Percy was supposed to go to was in a month. In the meantime, he was checking the place out on the behest of his mother, who had wanted him to spend some time with Paul and get to know him better. Before and after classes he did that, even brunch and lunch, and sometimes he'd sit in on Paul's classes, either quietly watching or keeping the man company. Most of the time when class was in session, Percy was wandering the halls and orientating himself with where everything was.

The principal had already written up a pass for him to do so, and had made another one for him to carry around Harry. Harry had absolutely refused to leave Percy's side, even when he had to go to school. When tried, people trying or in the vicinity was hissed at and treated hostilely, as Harry even became a little violent or scarily threatening for a cat. "Catty" as the principal had joked…

Harry laughed in his head about it all. His charge had a pretty amusing life at the moment. He was kind of dreading any impending conflict and having to reveal himself. He'd grown accustomed and used to the lazy and contented lifestyle he was currently living, but that didn't stop him from always being alert. It seemed, even in a peaceful setting and a form that enabled him no worries, that Harry was still haunted by the past and was unable to just be at peace.

It seemed like wartime was still every day, and Dementors were still aplenty.

After the first two weeks, Harry was pretty sure whoever would attack Percy would wait until freshmen orientation. Bad guys had a thing for dramatic entrances and exits, and usually had specific dates in mind to correspond. It was then that he and his charge met a red headed girl, whose hair vaguely reminded him of the Weasleys. But her attitude…it was completely Hermione's, though with a little Luna thrown in for good measure.

"Funny seeing you here," were the first things she said.

Percy whirled around, seeing the girl he met at Hoover Dam when trying to rescue Annabeth and Artemis.

"Oh, I remember you. You're that girl I met at Hoover Dam, the one that helped me get away," Percy blinked in surprise.

Her lips twitched upwards, "Rachel Dare."

"I'm Percy Jackson," he blushed, throwing out his hand awkwardly.

She took it gracefully and shook it.

"And your cat?"

Harry, who had perked up to listen closely, smiled smugly and held out a paw for her to take. She laughed and shook it as well.

"Smart little thing, isn't he."

Percy gave a hesitant smile, "Yeah, he is. Scary smart sometimes. This is Harry."

He held him up. Rachel smiled a little more widely.

"He's adorable. So, what are you doing here?"

And they began to talk as they walked, with Rachel explaining that she was there for the advanced math program. By taking Alegebra I then, she could start Alegebra II Freshmen year instead. Percy mused that would have been a good idea, though he sighed to himself as he thought on how too late he was for it anyway, and that he was never that good in math either. Not that he could with him going to camp.

Sometimes, camp put a cramp on possible summer plans.

They walked around until they reached the room where the student council was meeting. It was empty save for two girls that were planning for the freshmen orientation, and Percy held up a hand to say 'hi' when he froze at the same time as they did.

Both groups recognized the other for what the other truly was, while Rachel stood by Percy in confusion.

The darker-skinned one grinned viciously, "Well, Tammi, looks like we don't have to wait until freshmen orientation to get him. Here he is, on a practical silver platter."

Tammi grinned back darkly, "Isn't that just swell, Kellie? Let's get him."

Percy squeaked and roughly pushed Rachel to the other side as he darted to his left, leaving the phony cheerleaders to fly passed them and crash into some chairs. Paul's panicked form suddenly appeared.

"What's going on here?"

Both cheerleaders roared and exploded into their true forms, and Percy tried not to let his attention wander and stare at either their donkey leg or their celestial bronze leg. But then his cat leaped from his arms heroically, and Percy's eyes widened.

"Harry, no!"

But instead of being batted aside, in midair his cat transformed into a person who lashed out with a kick to Tammi's stomach, followed by a strange green light that had Kellie screeching. Kellie then started to run angrily at the stranger, his former cat, before the stranger whipped out a sword from out of nowhere and slashed the monster into two, disintegrating her.

"Who're you?" Percy blinked and recognized that the feminine tone of the voice made the question come from a shocked Rachel, and not from him as he'd dazedly thought.

The man smiled grimly and answered dryly, "Harry Potter, slayer of dark lords, former Azkaban prisoner, former fugitive, demigod Son of Thanatos, and your new bodyguard. Pleased to meet you."

Started 6/19/10 –Completed 10/26/10

A/n: Ack, finally finished this damn thing. For my regular PJO readers –here it is, and remember it's not a priority fic so no regular updates. As for Harry, he's going to be an oddball character in here. He's not actually all there at times, I think. He's actually kinda going to be a grim character, a little like Sirius after Azkaban, but he might be able to disassociate or be a little looser if he's in another form like when he'd became a cat. He's suffering from PTSD and PTAD (or what I like to call Post Traumatic Azkaban Days).

Besides, there are always a lot of stories where Harry needs a bodyguard. About time he's the bodyguard this time, eh?