Chaos (The Ultimate Crossover)

Reunion

Percy.
Magnus called us that he would be arriving soon. Thalia had stayed a month in the hospital because of her amnesia. Annabeth had flown to Boston to check on her. Like she says it, Thalia recovered her memory after Magnus and Annabeth made a deal with Mnemosyne. She was flying back to New York tonight. Piper and Leo where here and thank the gods. Having my dad and Athena as baby sitters wasn't pretty. My mom was out and noone was available. Nico and Will were having a civil war in the underworld. I left Leo and Piper with my kids. I left for work. I work at a school as the swim coach. I get paid very well and I love my kids.
When I got back, the whole place was trashed.
"Piper, Leo!" I yelled. I began to run to the twins' bedroom. Water was coming from the bedroom door. If I remembered correctly, there weren't any forms of water in the bedroom. I opened the door. Piper and Leo were knocked out and the twins were playing with their toy swords.
"Mikey, Lily. Did you knocked out your uncle and aunt?" I asked them. They were looking at me very guilty.
"Ughh" Piper and Leo were waking up.
"What happened?" Leo said. "We were just playing with them and suddenly I was hit." I picked both of my kids up. I walked to the kitchen and began to clean them up.
"Annabeth, Magnus and Thalia are coming. I'll go put them to sleep and take a shower. You are welcome to stay or something."
"No, actually, we are going to my apartment." Piper said.
"Are you sure?" I said.
"Yeah. Besides, you have a lot of cleaning to do." Leo said.
"Oh no. You are going to help me --" But they were already ou the door. I went to put the kids to sleep. They were on their cribs and I out their bedroom door. I began walking to my bedroom and I began to feel cold. I checked the thermostat to see if somehow in all the mayhem it was down but no. I walked to my bedroom. Black smoke poured from the slit of the door. I opened it and there it was. Nightmare. My hairs stood on end. "What are you doing here?" I tried to say but I actually said "Whaaaaah?"
"Oh sorry to interrupt you. I was looking for Jason Grace. That sneaky bastard just broke into Hades' vault." He said.
The air of my lungs was sucking out but I managed to say "Hades' vault?"
"Oh, sorry. They didn't told you. Jason Grace has killed Hel, the goddess of Helheim. Grace is going to release his father."
"What are you talking about?" I croaked. "His father is Zeus. Last I've heard, he lives in a loft in Chicago."
"No, Jason is the last Son Of Chaos." he said.

Piper.
After we left Percy's house we decided to go to the Institute were Emma was. The address she gave us was an old church. But then I began to see better. It was a large cathedral like building. There were runes just like the ones Emma had on her skin. A lot of them. "Is there a doorbell or something?" Leo said. A large gargoyle hand was stiking out. I knocked and it reverberated across Brooklyn. Few minutes later, a blonde man sticked his head out.
"Who are you?" He said.
"I'm Dr. Leo Valdez. This is Piper McLean. We are looking for Emma Carstairs."
"How did you find this place?" He asked. "Are you--?"
"Shadowhunters? No, we are not. We are demigods. Emma is my friend." I said.
"Jaaace? Who is it?" A woman's voice came from the old cathedral.
"It's okay hon! They are here for Emma.! I presume that since you can see this place, you're allowed to enter. Come in." We entered a giant atrium to a church. We turned right to a brass door. It was an elevator. Jace began pressing buttons and we shot upwards.

Dean Winchester.
After seeing my doppelgänger, Jason, my life changed. We liked the same things. We were very similar.
When the heroes returned, we began to plan our next move. We still had to find Wonder Woman, the Blue Beetle and Impulse. We got into Baby and other cars. Sam, Jason, Tim, Connor and I got into my car. We drove out of the batcave and into the night.
We've been driving for the past 3 hours. Sam was sleeping in the back. Tim and Connor were cuddling. Jason was the only one awake. I put on some of my CD's. Carry On Wayward Son was blasting on the speakers. I lowered the volume. "Hey, since when have Tim and Connor been together?" I asked. It just seemed that they were together but they didn't live near each other.
"They aren't together." He said. I looked back. They looked very happy. I wish I had that. Once, I had a wife and a son. But everything went to shit. Now everything is going to shit again.
"Are you sure? They seem very close. They are even cuddling." I said. He turned around.
"Timmy bird?" Jason said.
"Mmmm. Yeah?"
"Whaaaa?" I heard Connor say.
"Tim, are you and the Kon dating?"
"Whaaaaaaat?" Tim asked very high pitch.
"Uhm, we aren't, no, we aren't dating!" Connor stuttered.
"See, I told you, they aren't dating." I decided not to say anything. It was going to be a very long trip.

Magnus.
After Annabeth arrived, it was only a few moments after that Thalia recovered her memory. They had a heartfelt reunion. We were going to atempt travel. "Jack?" I yanked the pendant in my throat. Jack transformed into a sword.
"Sup, señor. What can I do you for?" The sword said.
"Hi, Jack." Annabeth said.
"Hello, señorita. Who's that?" It said. Apparently he was pointing at Thalia.
"She is Thalia, a friend of Annabeth's ". I said." Hey, buddy. Can you make a cut? We need to go to Manhattan."
"Sure thing, señor." He flew out. Good thing the hospital wasn't that far from the nearest park. We found a nice spot and Jack made the cut.
We arrived at Central Park at about noon. "Taxi!" Annabeth yelled. No one stopped. I whistled that high pitch that makes everything stop. We got in and told the driver to take us to Annabeth's house.
"Well, dearie, I wouldn't think on it" the driver said. "More so, we are going to Hel. Hahahahahahahaha!" And with that, the whole world vanished.

If you gave my quarter for every time I've appeared somewhere I didn't wanna be, I'll be a millionaire. We were in what seemed to be Heleheim or Muspellheim. But, why? Who was that man? "Annabeth! Thalia!" I cried. There weren't here. I was starting to worry. I began calling there names. I walked and walked and found a palace. The same palace of my dreams. Hel's palace. And if I was correct, Jason Grace would be inside.
I hate when I'm right. When I entered, the first thing I heared rocked me to my core.
"Magnus!!" Annabeth cried. If Alex Fierro could see me now. Going to the rescue. She had gone somewhere. She had our son with her. I loved her and she me but she went away.
"Magnus! Help!" Thalia cried. Jason was moving closer. That blonde monster. I went running to their aid.
"Ah, ah, aahah. Magnus Chase. You can't stop me. I already have three keys. Helheim, the Duat, and the Underworld and I will get the fourth and last key, Hell. Dear Thalia, I'm so very sorry about this." He grabbed her by the throat. Her feet were struggling. I was feeling anemic. I lost my balance. Jason struck his hand into her body. He ripped out her heart.
"Now the last piece of the puzzle. A heart of a demigod. Do you know the worst part, Magnus? I lied to all of this people. I clouded their vision to be set that I was the Son of Jupiter. Father always said that I should live up to his  name and reign Chaos upon Earth. After I  free my father, I will free Loki and the Fenris wolf. I will raise Hell and liberate Apophis. All 4 apocalypses in one chatastrophic event. I will bring forth Trigon, protector of the Pit. And there is nothing you can do."

Albus Potter.
Living with the children of Hecate for the past month has proven quite useful. Unless you count the demigods that have died. We were working with the Hypno's Cabin on identifying magical predictions in dreams and nightmares. Today was the worst. Rose, Scorpious and I found what appeared to be a magnate event. A war. Jason Grace was the Son of Chaos. He was planning a war bringing forth all the apocalypses into the end of the world. He has three of the keys of Solomon which opens the gates to Tartarus. We explained this to Percy. We also saw that Magnus Chase, Annabeth Jackson and Thalia Grace were in trouble. No stopping, he motioned us to call Alex Fierro, Daughter of Loki.

Jace Herondale.
Being a shadowhunter has it's perks. It's like being a corrupt police. The only problem is that it has to be more important. The greater good. Percy told me to help him find Alex Fierro. They had found her but he needed my help to recover her form Downworld. I've never visited the Bostonian downworld. It was, as usual, filled with beasts. Warlocks, vampires, werewolves and fairies. "Do you know how we will find her?" I told Percy.
"No, he said. We will 'ask' around" he made air quotes. I knew what that ment. As for how we got here, let say that my brother-in-law brought us.
"I'll do the talking" Magnus said. "Besides, you look like nephilim, the three of you. Alec, sweetie, come with me." He pour some glamour into his skin. We were waiting for almost 10 minutes when Alec and Magnus returned.
"She's in an apartment in Jersey." Alec said. "Mag, are you prepared to make another portal?"
"Yes, I am. Stop doubting my ability" Magnus said to his husband. We began to walk to nearby wall a long way from the Shadowmarket. "Here" he said. He began to draw runes into a sort-of door frame. The solid wall began to break and a portal appeared. We crawled into it and we were gone.