Disclaimer:

I have no affiliation with Miraculous Ladybug or Percy Jackson and the Olympus or the Heroes of Olympus series. Also any similarities to real life events or people are unintentional unless explicitly stated.

Adrien fought with the Greek and Roman demigods against the onslaught of monsters. It was pure chaos. He couldn't make out Clarisse's commands above the cacophony of battle cries, cynocephali's barks and clashing of weapons. He parried against the monsters. He narrowly dodged an arrow from one of the wild centaurs with a Chinese character tattoo on his arm that Adrien guessed the centaur couldn't read considering it meant "sesame chicken". Luckily he had Marinette's lucky charm in his pocket. She was at the crest of the hill making quick work of some two-headed men. From the corner of his eye he noticed that Alya were pointing at something in the sky. It wasn't a bird. It wasn't a plane. It a grey dragon flying towards them surrounded by giant eagles.

"That's Annabeth and Percy!" yelled someone.

Adrien saw the two demigods in the claws of the dragon. Annabeth was cheering wildly, while the other demigod he assumed to be Percy, looked somewhat green. There was another demigod riding the dragon, hair flying wildly in the wind.

"And I see Piper and Jason!" announced someone else.

While it was joyous news, there wasn't much time to cheer when there were monsters and the earth to fight.

A blazing comet streaked through the sky and disappeared behind the western hills.

Bolstered by the arrival of Annabeth and the others, the Greeks and Romans pushed back the enemies. However, for every monster turned to ash, another took its place. Karpoi grain spirits swirled out of the grass. They had to dodge Gryphons diving from the sky. Lumpy clay humanoids clawed out from the ground like Nico's army of the undead.

The battle felt never ending. Adrien felt is energy draining. His plague powers were still effective against the monsters, but he couldn't keep it up for long.

There was a lot going on in the battlefield. Tyson and his Cyclopes friends yelled out "Bad dog! Bad dog!" as they bashed the heads of the cynocephali. Grover Underwood and a team of satyrs cracked the clay humanoid monsters with their panpipes.

"Hey, bro," said Connor Stoll. "Can you come with me."

"I'm kinda busy," said Travis.

"Yeah, well, remember those landmines? Yeah, well we set them on the wrong hill."

"What?

Adrien realised with a sinking feeling he lost sight of Marinette.

Time was running out. At least Gaia hadn't woken up properly yet.

"Eiaculare flammas!" commanded the Roman Praetor.

A wave of flaming arrows arced over the Roman legion's shield wall, and struck a platoon of ogres. The Roman ranks marched forward, trampling monsters with their celestial bronze-tipped boots.

"Repellere equites!"

A massive herd of centaurs pranced away, dodging spears from the rest of the Roman Legion.

"Ave, Praetor Zhang!" the Roman Praetor greeted the Asian demigod in front.

"Ave, Praetor Ramírez-Arellano!" He yelled back. 'Let's do this. Legion, CLOSE RANKS!'

The Romans cheered as one and got into formation.

Praetor Zhang pointed his sword forward and tendrils of lightning generated from the golden eagle standard swept across the enemy, turning several hundred monsters to roast.

"Legion, cuneum formate!" Praetor Ramirez-Arellano commanded. 'Advance!'

The Romans charged forward. Adrien was suddenly very glad that the Romans were on their side.

"Greeks!" yelled the demigod Adrien assumed was Percy. "Let's, um, fight stuff!"

They yelled like banshees and charged.

Under his feet, the earth rippled violently. He lost his footing. Monsters face planted into the ground.

AWAKE. The earth reverberated with the voice.

At the crest of the next hill, the grass and soil swirled upwards and morphed into a giant woman with quartz like skin, root like hair and dress woven from grass.

"Little fools." Gaia the Earth Mother opened her pure green eyes. "The paltry magic of your statue cannot contain me."

Fear washed over Adrien. The Athena Parthenon wasn't enough to contain the primordial goddess.

"Stand fast!" Piper commanded. "Greeks and Romans, we can fight her together!"

Gaia laughed. The earth quaked. Everyone including the monsters started to sink into the ground. One of the onagers tipped over and vanished into the side of the hill.

"The whole earth is my body. How would you fight the goddess of –"

FOOOOMP!

Gaia was snatched up by the celestial bronze dragon. It rose in the sky with large wings, spewing fire. Adrien could just see Leo on his back, grinning impishly.

A second later, Jason lifted Piper and flew upwards to follow Leo.

Meanwhile, everyone struggled to dig their way out of the ground before the monsters did. Alya was pulled by Cecil from the Hermes Cabin.

A flood of monsters headed toward their direction. He searched for Marinette frantically.

A Roman demigod on horseback sliced through the first wave. Praetor Zhang turned into a charging African elephant that Adrien only just managed to dodge.

Adrien's dream was coming true. Desperately, he sought for another ending to his dream but he struggled to remember what happened in his dream in the first place.

While the battle raged on the ground, there was a storm brewing in the sky. He had never seen anything like it. A ball of fire, like a second sun, appeared in the sky growing smaller and hotter.

Then, a blazing comet streaked upward from the ground with a high pitched, almost human scream.

From the corner of his eye, Adrien caught sight of a centaur notching his bow, aiming towards Marinette who was busy fighting some karpoi grain spirits.

He called out to her.

The sky turned gold from the explosion.

Marinette didn't hear him. The centaur released the arrow. He ran towards her. He leaped up and collided with Marinette. They landed awkwardly on the ground.

"Are you okay?" he asked her.

There was blood splattered on her face.

"There's an arrow in your back," she whispered.

He was suddenly aware of the sharp pain in his black and the blood dripping down his back and arms.

Her bluebell eyes widened further. "Adrien! Look-!"

Dear Diary,

I'm exhausted but I can't get to sleep. After the defeat of Gaia and the battle, we did a sweep of the forest and hills to make sure there weren't any monsters left, ate and rested for a bit, then helped the Romans dig trenches and build walls for their camp in the strawberry fields.

I know should be happy that we won against Gaia, but I can't help but feel defeated. There were so many casualties amongst the Greek and Roman demigods. There weren't as many as we anticipated, but so many casualties all the same.

I was embroidering some shrouds for the funeral tomorrow, hoping that would quieten my mind but that isn't working. Then again, can you blame me? I'm embroidering shrouds of the fallen demigods.

We train countless hours, drill relentless exercises that nearly kill us, but that can't truly prepare us for a real war, for the smell of blood, the burning hair, the screams, the ground shifting under our feet and danger everywhere you looked. We are mortals after all.

If I wasn't so easily distracted by Gaia exploding, if I did something differently, Adrien wouldn't have been struck by that arrow and hit in the head by that centaur.

He's in the infirmary, but how he is in a Schrödinger's cat scenario. We don't know the extent of his injuries he has until he wakes. At least Adrien is stable.

I wanted to stay by his side, but Will Solace ordered me get some rest in my own cabin bunk.

I hope that I don't have to make another shroud.

The funeral ceremony is tomorrow. Chiron asked Nico to oversee the burial rites for the dead or presumed dead.

Leo Valdez is one of the presumed dead demigods. The entire Hephaestus cabin search the valley for him and Festus the dragon, but all they found were broken pieces of the Argo II.

From what Alya has pieced together, Leo's grand master plan was to separate Gaia from the earth, her source of power, with Festus and Jason, charm her to sleep with Piper's power, and then incinerate her to a crisp with his fire power. It looks like he and Octavian from New Rome sacrificed themselves to save us all.

Jason, Piper, Percy, Annabeth, and the other two demigods of the prophecy, Frank Zhang and Hazel Levesque are feeling guilty for not stopping Leo, but we keep telling not to because they did all that they could.

Huh.

Maybe I should apply that to my own situation. I did all that I could. Although, I shouldn't have been so naive to expect that a kiss could wake him up and make everything all better like in fairy tales.

Argh! Thank goodness the battle field was so chaotic, that no one took notice. If someone did, I'd be mortified.

Anyways, the satyrs and nymphs have disappeared into the woods for a meeting of the Cloven Elders to determine if their plan worked. The monsters are gone at least.

And it's not all grim news. The two demigod groups are getting along great and we got the Athena Parthenos back thanks to the Romans.

I was kind of expecting it to activate during the battle like the statues in Paris, but all it did was just stand there. There weren't any laser eyes or anything. I'd call it useless, but it emits this aura that is comforting at least.

The fight might be over, but there's still so much to do that there isn't enough time to sit down and worry. Maybe I should try to get some rest otherwise I won't be able function properly tomorrow. As Will Solace once told me, you can't help others if you can't help yourself.

Adrien woke up disorientated from a dreamless sleep.

"You're finally up!" Will Solace said cheerfully. "You had a concussion and have been out for about one and a half days. I'm just going to run through some simple questions to assess the damage. Is that okay."

He nodded.

"What is your name?"

"Adrien Agreste."

"Where are you?"

He looked around the room. "I think I'm in the infirmary in the Big House at Camp Half-Blood."

"On a scale of one to ten, how do you feel?"

"Seven. There's no pain, but I feel as if I'm missing something important."

"That's normal following a concussion. On the bright side, your cognitive functions seem to be okay. Take it easy for the next few days though. Light exercise only, and plenty of food and water. Speaking of food, dinner is in about an hour. Do you feel up to it?"

In response Adrien's stomach grumbled. Will went through the infirmary discharge procedures, filling him in on the events of the past few days, and ordered him to take a shower and then get eat some food to bring his strength back up.

Adrien had finished showering, still trying to remember what he forgot, and was exiting the shower block when he stumbled.

"Hey dude," asked a nearby demigod, "are you all right?"

"I thought I was," he replied, leaning on the doorway, "but now my head feels foggy, like it's been altered by Mist again."

The other demigod handed him back his dirty clothes, toiletries and his lucky charm. "I hate that feeling. Six months of my life disappeared thanks to Hera. Do you want me to call Will?"

"Nah it's all right… uhh…" The other demigod seemed to be familiar with Will, but Adrien had no idea if he should know him or not.

"Percy Jackson."

"Adrien Agreste," he said, shaking Percy's outstretched hand. "You're the demigod that went missing. I think I saw you on that dragon."

"That dragon was Frank, and that was not fun," Percy said, grimacing. "So you're the Adrien that the others have said nearly lead us to victory against the Hunters in Capture the Flag."

"You heard about that?"

"Yeah, awesome job! Next time I want in!"

"It was Marinette's doing." Adrien finally realised what he had forgotten. "Where's Marinette?"

"Woah! Marinette? She's gone -."

"GONE?!"

"As in I saw her a moment ago but I think she went back to her cabin."

"Oh, that's good. I thought, never mind." He remembered the battle, the centaur, Marinette and the pain in his back. Somehow, he managed to change her fate. Thank the gods. He didn't want to imagine what the outcome would've been if he was too late. "It was just a dream."

"Demigod dreams. Man, they're just as troublesome as prophecies." A stormy expression crossed Percy's face. ""An oath to keep with a final breath." Why did Hera have to interpret the prophecy so that the only solution the fates could come up with was for Leo to die?"

"Wait, Leo Valdez is dead?"

"He sacrificed himself to save us. Ugh, speaking of sacrifice. If we didn't go over to Athens to prevent the blood sacrifice, my bloody nose wouldn't have been he sacrificed required to wake Gaia up in the first place. I can't believe it!"

"Well," Adrien fought to think of what Will would say that might calm Percy down. "Look at the bright side. How do know if you didn't go all the way there, some other demigod wouldn't have gotten kidnapped and sacrificed instead? Prophecies are weird. I don't know."

Percy appeared to mull it over. "I wouldn't put it past Gaia. I guess prophecies will pass, but not necessarily in the way you expected or wanted."

"Adrien!" said Nino. He was accompanied by Alya and Marinette. All three of them looked relatively unscratched. "Glad you're finally awake, dude!"

"Percy, said Alya. "Annabeth is looking for you."

"Ah cool. I'll see you later." Percy waved at them. "And remember to find me before you take on the Hunters in Capture the Flag!"

"Adrien, is that your stuff?" asked Nino. "I'll take it back to the cabin. I have something I needed to grab from there anyways."

Alya linked arms with him. "I'll come too. Marinette, you take Adrien over to the dining pavilion."

"O-Oh, Okay."

They started heading towards dinner.

"Marinette! You're okay!" Adrien smiled at her, but she looked as if she was going to cry. "Why, what's wrong?"

"S-sorry. It was my fault you got injured. You got shot by an arrow that was aimed at me and then that centaur hit you with its cudgel. A-and about that-"

"Hey, it's not your fault or anything. We get more injured through Capture the Flag games. If anything, I think I'm alive because of your lucky charm, so thank you."

"Your wel-" She yawned. "Sorry, the night before I was up all night embroidering shrouds for the funeral, and have been helping out all day."

"Embroidering, oh. Who died?"

He didn't get an answer at that moment because Coach Hedge shoved his baby satyr in his face. "Hey, you want to meet Chuck? This is my boy, Chuck!"

The coach's kid was a really cute. He was glad to see Marinette's expression relax a little at the sight of the newborn.

The dining pavilion was really crowded with the Roman demigods in attendance.

"Hey Adrien, Marinette over here!" said Piper. He was glad to see her and Jason again, looking relatively cheerful despite what happened to Leo. The three of them were really close.

The food was delicious as usual. There were grumblings about the gods but on despite that, dinner was great. Nino and Alya managed to get a seat at their table too. Everyone seemed to be getting along great and were swapping stories of their quests over the years trying to outdo each other.

After a few songs at the campfire including a preview of XY's upcoming single by the popstar demigod himself, the Roman Praetors were called to the front and were greeted by a thunderous round of applause. Up on Half-Blood Hill, the Athena Parthenos glowed more brightly in moonlight like a beacon.

"Tomorrow," Praetor Ramírez-Arellano said, "we Romans must return home. We appreciate your hospitality, especially since we almost killed you –"

"You almost got killed."

"Whatever, Chase."

A chorus of "oohs" broke out amongst the crowed followed by laughter.

"Anyway," said Praetor Zhang, "Reyna and I agree this marks a new era of friendship between the camps."

"That's right," she said, clapping his back. "For hundreds of years, the gods tried to separate us to keep us from fighting. But there's a better kind of peace – cooperation."

"Are you sure your mom is a war goddess?"

"Yes, McLean," she replied. "I still intend to fight a lot of battles. But from now on we fight together!"

Adrien cheered loudly with everyone.

Praetor Zhang raised his hand and everyone went quiet. "You'll all be welcome at Camp Jupiter. We've come to an agreement with Chiron: a free exchange between the camps – weekend visits, training programmes and, of course, emergency aid in times of need –"

"And parties?" asked Dakota.

"Hear, hear!' said Conner Stoll.

"That goes without saying," said Praetor Ramírez-Arellano. "We Romans invented parties."

The demigods oohed again.

"So thank you," Reyna said authoritatively, before the Baccus kids, charged by the red Kool-Aid, could get riled up. "All of you. We could've chosen hatred and war. Instead we found acceptance and friendship."

Then she walked up to Nico, who was standing to one side in the shadows, grabbed his hand and pulled him gently into the firelight. Nico had stepped up into a leadership position with the funeral rights.

"We had one home," she said. "Now we have two."

Adrien cheered at the tops of his lungs. From what he heard, he had been through a lot. They all had, but they would all be okay.

Dear Diary,

I'm on the plane now heading back to France with Alya, Adrien, Nino and Chloe and accompanied by the Natalie the Nymph and The Gorilla who is a Gorilla, the ancient race living on an island in west Africa before 8th century BC, not an animal.

Chiron and Olympus say that it's safe for us to return home and school. Essentially they think that because all those monsters were recently vanquished, it will take a long time for them to crawl out of Tartarus and therefore it should be safe for everyone to go home.

Nathalie and The Gorilla will take us back to Camp Half-Blood next summer.

Things are somewhat strained with the gods right now. We were supposed to be thankful for them, and yet we were the ones that suffered for them. I guess that without them, we wouldn't be us, but it's difficult to reconcile that.

On the other hand, the bond between the Greek and Roman demigods are stronger than ever. If anything, the Hermes and Mercury children are getting along too well and need to be stopped from stealing things. (Except Alya, because she's the best!)

If something isn't done about them, I think that Piper will let the Mars and Ares demigods demonstrate the best way to kill a hydra on the Hermes and Mercury children, and she spent a long time to stop that situation from escalating into a war.

Speaking of Piper, she's ecstatic to find out that Nino and Alya are a couple.

She's not so happy that I and Adrien are not especially after Alya showed her a photo of the kiss.

Why on earth was she even filming at a time like that?!

I made them swear to never, ever, ever let that photo see the light of day. I don't think he even remembers it. If he asks, I'll just say it was CPR.

Maybe I should take Piper's advice and just tell him how I feel, but I really don't feel ready.

Anyways, we'll all be going to the same school, even Alya. It turns out that she joined our school after I left. What are the chances?

Adrien is going to be staying with Nino, although Chloe initially wanted him to stay at her father's hotel, but Adrien said, "Thank you, but I already said yes to Nino."

Chloe is surprisingly let that go. Piper may or may not have diffused that situation too.

We'll be heading back to Camp Half-Blood for more training. Maybe we'll be bringing along some more demigods. I can't wait to see everyone again. I also want to try going to New Rome on exchange to see if their fashion is anything like Italy's and maybe to New Rome University after high school.

But first we need to find Adrien's mother. He thinks that if we find Gabriel, we will be able to find his mother.

The prophecies still aren't working. Ella the harpy, Tyson and Rachel Elizabeth Dare are going to New Rome to try and reconstruct the Sibylline Books. But we don't need the fates to make our own destiny.

He's was initially reluctant to have Nino, Alya, Chloe and myself help him, but we wouldn't take no for an answer. After all that we went through, how can we not help out? Besides, it can't hurt to have a little luck by his side, right?

I can't wait to go home to Mama and Papa. They are not going to believe everything that's happened.

I'm not entirely sure what's happened or what's going on or what will happen in the future, but look out Gabriel, and look out monsters. The Heroes of Paris are coming.

Goodbye for now, dear diary.

Author's Note:

Hello!

Thank you for sticking with this story, for reading it, following it and reviewing it. It means a lot to me and is always a pleasant surprise to know that someone out there likes what I have written.

This story is my tribute to both Miraculous Ladybug and Heroes of Olympus. To me, they both have a similar vibe about them that is fun and exciting. The puns and jokes in both genuinely made me laugh. I especially love the plot and how the fight scenes and dialogue were written in the Heroes of Olympus series (and Percy Jackson series).

When I wrote this story, I wanted to stretch my writing a bit by trying to write in first person instead of just third person like I usually do. It was also to quickly differentiate between Adrien and Marinette's point of view, and presented some interesting challenges particularly with figuring out the sequencing of events including when she would find time to write down a diary entry.

This story was written more on the computer than my other stories too. Usually after I have this idea that won't leave my head for a while, I write down all the points down on a piece of paper. Then I try to put it into order and then start hand-writing the story. I try to maintain some discipline and write chronologically, but if I have an idea for a future chapter, I'll add it as a dot point in the plan I've written. After the handwritten draft is written, I'll type it up. Then I'll go back and refer to the source canon to flesh out the story and getting the characterisation right, which often means I have to re-write and even take out scenes and entire chapters. But that's okay. I usually can find places to insert the unpublished idea somewhere else.

One of the chapters that didn't fit after checking the canon and one that I was quite excited about was called "Mean Gods". I had completely forgotten that the gods went quiet when I did my handwritten draft and so this chapter which featured one of the gods had to be cut.

In addition, for a long time I was honestly worried that I wrote myself into a corner with the dream especially regarding elephant, because I realized that they didn't bring Hannibal the elephant to Camp Half-Blood, until yesterday when I reread the Blood of Olympus that Frank once turned into an elephant. Hopefully the rest of the story is okay too, but by this point I really wanted to publish it so I'll stop worrying about trying to make it perfect.

This story took me a lot longer than I would've liked, but I'm glad I wrote it and I'm glad that I've finished it. It helped me process a lot of things that were happening in my life. So thank you for being a part of the journey.

Since this is the last chapter of this story, I've let my ramble on for a bit. This is all I have left to say though, except thank you once again and take care of yourself and others. :)