This book was inspired a book written by @bleepybloopybloopy
Please check out thier works.

A/N:My version of New York has Harry Potter, Percy Jackson, and Marvel coexisting. Full Metal Alchemist verse will appear in it's own way no spoilers this round.

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Jessi Pov
Long Island New York

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The sound of my Uncle Nico muttering in Italian drew my attention as he entered Cabin 13. I currently had been playing a game of wizard chess against Ronald Weasley who is one of my two Griffindor peers while Annabeth was taking notes. I was playing via Iris Message.

  I was going to a trip to the city as a for a few reasons. 1)being that my father was an infamous wizard cult leader and terrorist. 2) My former schoolmate Peter Parker managed to drag me into a meetup with the Avengers, 3) I had a purchased an unusual alchemy book from a magical book shop. and 4) I was going to lead my first quest.

  I honestly was shocked to see my uncle was accompanied by two others my godfather Severus Snape, a son of Hecate, and an avenger Dr. Stephen Strange, my sort of mentor. Ron gulped as he saw both Dr. Strange and Sevvy. I roll my eyes as I signaled to Ron to just play against Annabeth. I leapt off Nico's bed as my two metallic fangs were visible as I grabbed a rucksack and my Ipod Mr. Stark gave me.

"What is it Uncle Neeks I was playing chess with Ronniekins, one of the golden trio I trust.." I giggle adding "I still get sick around Harry from the protective curse father put on me. Hermione, well she got nothing on my buddy Annabeth." I said as I pull on my Ravenclaw hoodie aware that most people had been amazed that I wasn't a Slytherin like my father. Mum was a Hufflepuff in her day so I knew I would be a happy medium .

Annabeth blushed while I heard Ron and a wild Potter laugh. Hermione was probably annoyed by the statement, I am her acquaintance only. I do get on with both Luna Lovegood and Tonks more than her. Draco Malfoy is like an annoying brother who tries to get me into joining the baby death eaters.

I tilt my head seeing Dr. Strange exchange a look with godfather Sevvy, a nickname only one other person called him. I narrow my eyes aware who seeing my father killed her. I rub my head as Sevvy smirks a second as he gestures for me to follow him to my bed where I saw Thalia Grace, Chrion and Tonks sitting. I swore in Italian as my Uncle Nico bit his cheek looking a bit annoyed.

"Jessi, you are aware of certain events this past summer requarding Potter and your father? He's not pleased you sided with Lord Hades..." Severus began to explain before Tonks rolled her eyes and interrupts him. I fist bump her as she had her own Ipod from Tony.

"Severus it is obvious she has decided to be part of the order and remain with Nico. I know Lucius is trying to use my cousin to recruit her." Tonks says giving me a wink adding "Mad Eye and I were able to help Sirius evade the ministry all thanks to her, that Peter kid, and Mr. Stark." Tonks slowly runs her hand through her purple and pink tresses.

"Jessi, Fury wants you to bring your discovery to Avenger's tower. Chiron, Severus, and Mad Eye spoke with Fury of plans."Dr. Strange explained as I signaled for Dr. Strange, Nico and Severus to come speak with me in private. I set up a silencing charm and use shadows to make certain no one bothers us.

"Let me guess, my anime crush L. Lawliet is waiting for me in Ravenclaw common room ?" I ask as I wink at my Uncle Neeks before adding "Or my theory of the Elric brothers actually existing in an unknown realm is true? And yes I am serious about L. as a Ravenclaw and my crush. I only fancy Peter Parker and Neville Longbottom" I put my arm around Nico who chuckles as we both knew who we each liked. I also kept a few secrets of his and he did with a few of my own.

"Why would you fixate on Longbottom of all the students.... Nevermind that's not important presently." Severus had sardonically muttered. I slowly roll my hazel eyes when both Severus and Dr. Strange explained that I was indeed summoned by Fury to work with the Avengers, help cancelling father's purge the world of muggles plot, and drag a team of demigods and wizards I trust to assist me. Dr. Strange, Dr. Banner, Mr. Stark, Peter, Fury and to my surprise Loki were those of the Avengers lot.

Nico gave a grin as he volunteered to go with me seeing as I am indeed a granddaughter of Hades. He adds that Severus is both a wizard and demigod who was one of my mom's few peers from Hogwarts. I knew the other three were Lily Evans-Potter, Lucius Malfoy and Remus Lupin. I nod as I remove both the shadows and silencing charm. I was wondering maybe this was a sick nightmare or joke. I know it isn't and I know all too well father's been trying to breakdown my mental barriers.

"I think it's possible that I may need some caveats seeing as Papa wants me to be his little psycho pawn. I'm still pretty pissed he used mother to sire me before he ....." I shut my eyes feeling off as I manage to spit out" until he went after his fangirl out of the bit of love his corrupt black heart has. Bellatrix is a vile woman, I honestly get...." before I can continue I taste a mixture of vomit and blood as I grabbed Nico's jacket and black out. The dark mark on my neck was burning and I knew father wanted myself and his minions.

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     Winry's house
         Edward's POV
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I study the note that came with the unusual ring over and over again as I try to figure out what language it was written in. I managed to decode the note only and it was rather fascinating as it was creepy. Alphonse was with Granny and Winry waiting for Mustang and Hawkeye to arrive. I had to contact Central over what I had read as the note was addressed to me.

The note said the following;

Dear Edward Elric,

I pray to Lord Hades you receive both the book of my ancestor and the Gaunt family ring. I think that you may find that research and tales of your brother Alphonse are myths in my realm. Hell my grandfather Hades would be one in his own right. I'm rambling a habit my delusional father bestowed upon me.

My name is Jessica Valencia Merope Riddle or Jessi. I'm the firstborn child of a cult leader known as Tom Marvolo Riddle or 'Lord Voldemort '. My father failed to make me a pawn in his game of chess to rule my realm. I ask you keep the book and ring safe.

Let's say we can do a bit of equivalent exchange helping handle corruption and conspiracies in our realms. I shall send you information via the book. The ring well it's something my father will kill for as it's a long story. I'm sorry if you were busy serving the arse Roy Mustang.

Show him and Hawkeye this as aside from yourself, Al, and Winry they will be of great use. Bloody Hell gotta go it seems an irksome Nick Fury and Mad Eye Moody upset my Uncle Neeks.

I will explain all that next letter as I am more or less figuring a way to bridge our realms together. Warning its about 100 years into the future here.

Much Love and appreciation,
Jessica Valencia Merope Riddle

   I had let Winry, Al, and Granny read this letter and knew they're going to discuss the situation with Mustang.  The Füher would probably want a report on this and it would draw attention from the homunculi. The sound of Mustang and Hawkeye having an argument drew my attention.  I was aware that Al already would come, and I think Winry would join us. Granny had been angry about what Jessi said of her father.

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      Tony pov
    New York City
    Nine days after Ed gets the letter
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  The fact that Fury was trying to fight with a teenager that was actually 80 and a grumpy and paranoid warlock had Clint, Natasha and of all people Loki watch as Dr. Strange,Severus Snape and Sirius Black were trying to make the trio calm down. I slowly rolled my eyes as I went with Peter to see how far that Bruce and Jessi were getting into making a portal to Amestris. 

Well I was seeing Jessi and Bruce,  Peter was seeing how Harry Potter was doing. I had to admit that they were getting along well. I found it cute how Peter and Harry were becoming peers via the connection of Jessi. I'm one to admit that she could actually become a great asset to the team.  As I enter the lab I  noticed Bruce and Jessi had been chatting about Star Trek and their other shared fictional series Deathnote.

"I see it would be amazing if we had Data and L.-Senpai as allies. I admit that aside from him and Pete.... I kinda"Jessi whispers the next part as Bruce nodded his head while he whispered something back. Jessi grins before saying "Wotcher Tony we have nearly broken the last few ciphers. So why are Fury and Mad Eye and Uncle Neeks all fighting?"

"Nico and Fury are mainly trying to tell the paranoid Mad Eye 1)you definitely aren't working for your father. 2) you and Harry were possessed by him." I continue to explain what's happening upstairs adding "Loki also has been looking into helping dealing with what's going to help with the Death cheater cult of your father. " I pause when I see Jessi and Bruce exchange a look as a glowing portal opens up to reveal five figures.

  ❌To be continued ❌