Percy Jackson and the Olympians and Avengers Crossovers
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For Research Purposes, Right? by Const3llations reviews
For the first time in a while, Jane found herself at peace. No government agencies, no Earth-ending apocalypses and especially no gods. Then some guy shows up outside her lab, wearing a suit that's definitely way too big, and she's not quite sure what to make of him. PJO/Avengers AU. Percy x Jane.
Rated: T - English - Romance/Humor - Chapters: 7 - Words: 14,141 - Reviews: 64 - Favs: 381 - Follows: 580 - Updated: 52m - Published: 5/12 - [Percy J., Jane Foster]
Pride is the Devil by Const3llations reviews
Throughout Natasha's entire life, she'd done nothing except kill, and kill some more. Now, with the war over, she finds herself lost and without purpose, struggling to cope with the guilt war always leaves behind, and spiraling uncontrollably down a never-ending drain, waiting for somebody to catch her fall. PJO/Avengers AU. Percy x Natasha. Currently being rewritten.
Rated: T - English - Hurt/Comfort/Angst - Chapters: 4 - Words: 8,152 - Reviews: 238 - Favs: 1,233 - Follows: 1,603 - Updated: 7/2 - Published: 7/3/2021 - [Percy J., Black Widow/Natasha R.]
What if Captain America was a Demigod? by TheFruityFrankSimp reviews
Cap figures out he's a demigod and trains at camp half blood. This story contains OCs.
Rated: T - English - Adventure/Fantasy - Chapters: 3 - Words: 945 - Reviews: 3 - Favs: 2 - Follows: 3 - Updated: 6/30 - Published: 6/27 - Captain America/Steve R., Chiron, Kelli, Bucky Barnes/Winter Soldier
STUMPED AVENGERS by ArtemisTheHuntress00 reviews
When The Avengers are sent to catch a dark haired green eyed teen, they are introduced to a whole new world.
Rated: T - English - Humor/Adventure - Chapters: 3 - Words: 1,398 - Reviews: 9 - Favs: 16 - Follows: 26 - Updated: 6/30 - Published: 12/28/2021
The Gods Must Be Crazy by aprill99 reviews
As a daughter of Apollo and a granddaughter of Mercury who has lived through wars with Titans, Giants, and undead Romans, Cassie is well aware that "normal" must be judged on a curve. Still, the invasion of a Norse god backed by an alien army is taking it a little far. Now she's involved with the Avengers and it seems like life won't be getting less weird. The gods must be crazy.
Rated: T - English - Romance/Humor - Chapters: 48 - Words: 443,243 - Reviews: 341 - Favs: 687 - Follows: 774 - Updated: 6/25 - Published: 7/28/2017
Age of Heroes by GeekyFandomWriter100 reviews
With the events of the avengers and mortals starting to open their eyes, the mist is crumbling. Demigods and the supernatural have stayed hidden by some miracle for the past few years, but that is about to change. How will our heroes and others react when multiple worlds collide? Takes place after TOA and just before the events of Winter Soldier, but Jason and others have survived.
Rated: T - English - Family/Adventure - Chapters: 19 - Words: 11,883 - Reviews: 32 - Favs: 76 - Follows: 125 - Updated: 6/25 - Published: 1/1 - Annabeth C., Percy J., Black Widow/Natasha R., Iron Man/Tony S.
Classified by Werewolf14119 reviews
Percy Jackson left Camp Half-Blood. Annabeth broke up with him and he needed to get away. At age 17 he was taken by a secret organization called HYDRA to be the newest super soldier. At age 21 HYDRA and SHEILD were destroyed. Percy Jackson is upset and confused. He refuses to go to Camp and he doesn't want to put his mom and little sister in danger. Here is his journey.
Rated: T - English - Adventure/Supernatural - Chapters: 5 - Words: 4,613 - Reviews: 4 - Favs: 26 - Follows: 47 - Updated: 6/23 - Published: 6/12 - Percy J., OC, Bucky Barnes/Winter Soldier
In Our Nightmares by basketballandbooks08 reviews
Percy and Bucky are doing their best to navigate the impending war; they've seen things from their worst nightmares that they wouldn't wish on their enemies. When they begin to reconsider, will they realize where their loyalties lie as sides are starting to be taken?
Rated: T - English - Angst/Friendship - Chapters: 8 - Words: 26,750 - Reviews: 1 - Favs: 5 - Follows: 5 - Updated: 6/20 - Published: 3/5 - Percy J., Jason G., Captain America/Steve R., Bucky Barnes/Winter Soldier
Percy Jackson and, well, the Avengers by McShizzleSupreme778 reviews
After the newly formed Avengers battle Loki and his army of Chitauri in New York, they realise they are not alone. A second team was also fighting the aliens, a group not even SHIELD knew about. They were led by a young hero who called himself Percy Jackson... Rated T to be safe. Asterixised swearing and a little fluff. Canon ships (Percabeth etc) After PJO 5 and during Avengers 1.
Rated: T - English - Chapters: 3 - Words: 6,930 - Reviews: 12 - Favs: 57 - Follows: 111 - Updated: 6/18 - Published: 8/29/2020 - [Annabeth C., Percy J.] Clarisse R., Iron Man/Tony S.
The Spider and The Sea by TheFruityFrankSimp reviews
Percy Jackson is stalked by S.H.I.E.L.D. Spiderman is tasked with taking the "Terrorist" into headquarters. What water based shenanigans will Percy and the gang get up to? (Warning Intense Solangelo and Percybeth fluff) *This takes place after trials of Apollo*
Rated: T - English - Suspense/Adventure - Chapters: 3 - Words: 1,446 - Reviews: 3 - Favs: 4 - Follows: 6 - Updated: 6/16 - Published: 6/15 - Percy J., Annabeth C., Chiron, Frank Z.
Healing a Broken Angel by CrimsonSayian12 reviews
Aeons ago, before the present time, there was a prophecy announcing the deaths of the Olympians at the hand of a God Killer. Someone was said to stop this God Killer, a powerful half-blood hero: a Nephilim child. But...what if he didn't want to save the gods. What if he knew how they behaved and what if he wanted to kill them, believing them to be threats to humanity? OC Centered
Rated: T - English - Fantasy/Adventure - Chapters: 30 - Words: 230,127 - Reviews: 26 - Favs: 89 - Follows: 89 - Updated: 6/16 - Published: 1/23/2020 - Annabeth C., Percy J., OC, Thor
Of Water and Salt by Stellarys reviews
Percy Jackson is tired. Tired of all the fighting and all the death. He just wants to rest. The Mortal World is changing as they begin to raise their own champions. The Immortal Realm will not stand idly by as time passes. So when Olympus calls, her Sword must answer. But is it the same blade that fell Gaea or one newly forged? (AU) (Post Giant War) (Pre Battle of New York)
Rated: T - English - Suspense/Angst - Chapters: 36 - Words: 338,225 - Reviews: 1447 - Favs: 3,747 - Follows: 4,304 - Updated: 6/14 - Published: 5/3/2019 - Percy J.
Pegasus by xeunobre reviews
Haunted by the life of a demigod, Percy and Annabeth decide to leave it all behind. 8 years later, Nico's mistake is traced back to Percy and all hell breaks loose. With the entire universe at stake, can the heroes save the day or are they doomed from the very beginning?
Rated: T - English - Adventure/Supernatural - Chapters: 5 - Words: 17,350 - Reviews: 33 - Favs: 128 - Follows: 192 - Updated: 6/13 - Published: 4/2/2019 - Annabeth C., Nico A., Percy J., Hawkeye/Clint B.
Half Truths Lead to Misunderstandings by dragonslayer111 reviews
Percy & Jason find themselves in the custody of the Avengers. While attempting to keep their world a secret and prove they are not a threat to mortals, they try to explain themselves without actually explaining anything. The Avengers get worried for these teens, thinking that there could be an organization worse than HYDRA turning kids into soldiers, which leads to more problems
Rated: T - English - Adventure/Mystery - Chapters: 14 - Words: 103,945 - Reviews: 551 - Favs: 1,084 - Follows: 1,389 - Updated: 6/8 - Published: 4/24/2020 - Percy J., Jason G., Captain America/Steve R., Spider-Man/Peter Parker
When Harley Says Connected, He Really Does Mean It by feelingtheaster9145 reviews
Of all the ridiculous, half-baked ideas Harley has had in his lifetime, this has got to be his best one yet. In which, on a cold December day, Harley catches Tony Stark in his shed and decides to be a meddlesome little shit.
Rated: K - English - Humor/Family - Chapters: 1 - Words: 18,039 - Reviews: 6 - Favs: 22 - Follows: 12 - Published: 6/6 - Harley, Iron Man/Tony S. - Complete
Death and Champagne by Const3llations reviews
When the doorbell rings at three o'clock in the morning, it's never good news. Spygirls? Space elves? Laser guns? What the hell is going on here? PJO/Avengers AU. Crack-fic.
Rated: T - English - Adventure/Humor - Chapters: 9 - Words: 32,589 - Reviews: 101 - Favs: 460 - Follows: 512 - Updated: 6/3 - Published: 9/12/2021 - Percy J., Yelena B. - Complete
Umbra by Apollyon808 reviews
The tale tells of hero of good, of hope, loved by all and hated by his enemies. But evil runs rampant throughout the universe, corruption deep in its veins. Will this hero save the 9 realms, or will he tip the scale and plunge the realms into darkness
Rated: T - English - Adventure/Suspense - Chapters: 1 - Words: 2,267 - Reviews: 4 - Favs: 10 - Follows: 18 - Published: 5/30 - Percy J., Piper M., Captain America/Steve R., Bucky Barnes/Winter Soldier
Missing by Samuel Walker reviews
He knew it was coming. Someone was going to get curious eventually. After all, how was the mist supposed to cover up several years of missing kids? When S.H.I.E.L.D begins looking into the disappearance of Percy Jackson, Agent Maverick Burns takes a special interest.
Rated: K+ - English - Romance/Angst - Chapters: 4 - Words: 5,790 - Reviews: 18 - Favs: 76 - Follows: 136 - Updated: 5/27 - Published: 3/5 - [Percy J., Annabeth C.] Black Widow/Natasha R., Hawkeye/Clint B.
Mess of Me by ADHDANXIETY96 reviews
Post battle with Gaea/Battle of Sokovia, Percy and Nico leave Camp Halfblood, only to be found by the Avengers and taken in. Canon divergent after Blood of Olympus and Age of Ultron.
Rated: T - English - Adventure/Hurt/Comfort - Chapters: 4 - Words: 2,354 - Reviews: 11 - Favs: 21 - Follows: 41 - Updated: 5/24 - Published: 12/24/2021
The Demi-god Chronicles by Grayson Clarke reviews
Grayson Clarke, a demi-god that wasn't even supposed to be born. But when his life takes an unexpected, terrifying turn when he turns 12, he's thrown into a world invisible to the eyes of mortals.
Rated: T - English - Adventure/Supernatural - Chapters: 3 - Words: 16,878 - Reviews: 1 - Favs: 9 - Follows: 11 - Updated: 5/23 - Published: 4/8
Sentinel by macdog123 reviews
It's his job to stand guard, to watch and to protect. He's the first one in and the last one out, and when all hope is lost, he maintains his ground, steadfast, and ready. Evildoers beware, Sentinel has been reposted with original authors permission.
Rated: T - English - Adventure - Chapters: 6 - Words: 36,267 - Reviews: 17 - Favs: 96 - Follows: 165 - Updated: 5/21 - Published: 5/3 - Percy J., Black Widow/Natasha R., Captain America/Steve R., Hawkeye/Clint B.
Should I know you? by Dreamerinabottle reviews
Percy comes home after the war, but something has happened that he had hoped he would never have to see. Then he finds out he has an uncle he has to live with until he turns 18. What will happen when the savior of Olympus meets earth’s ‘mightiest heroes’? This takes place right after BoO and… the Avengers timeline in this is totally wack, so you‘ll just have to read it. ;)
Rated: T - English - Hurt/Comfort/Family - Chapters: 7 - Words: 6,489 - Reviews: 93 - Favs: 298 - Follows: 457 - Updated: 5/18 - Published: 6/10/2021
The Masked Hero by CreativeMode reviews
Percy is walking down the streets when he has a chance encounter with the one and only SpiderMan. Inspired, Percy begins his own adventure as the city's new masked Superhero.
Rated: T - English - Adventure/Romance - Chapters: 3 - Words: 6,401 - Reviews: 4 - Favs: 16 - Follows: 48 - Updated: 5/16 - Published: 4/24 - [Percy J., Annabeth C.]
De Anno Luctus by silverbird6 reviews
For once, Percy's live isn't a Greek tragedy because of his godly relatives. No, this time it was aliens. In a world where superheroes and demigods coexist, the gods are not as all-knowing as they might think, and demigods and mortals alike must rise to the challenges of a new, more dangerous world. Part 1: "Of Gods and Men" series
Rated: K+ - English - Family/Hurt/Comfort - Chapters: 5 - Words: 47,655 - Reviews: 39 - Favs: 182 - Follows: 229 - Updated: 5/13 - Published: 5/10/2021 - Nico A., Percy J., Reyna R., Hazel L. - Complete
Can't Always be the Hero by LittleMissReadsTooMuch reviews
It's been two years since the Giant War. All Percy wanted was a simple life of going to college with his girlfriend and living a happily ever after. That didn't exactly work out, but apparently it was for the better, because then he somehow got roped into being an assistant for New York's resident genius, billionaire, playboy, and philanthropist.
Rated: T - English - Friendship/Adventure - Chapters: 5 - Words: 7,319 - Reviews: 58 - Favs: 316 - Follows: 435 - Updated: 5/13 - Published: 12/13/2019 - Percy J., Iron Man/Tony S.
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