The Arrival

Hello Faithful Readers! I'm going to do something that I love the most. A MBAV and PJO crossover. I love both so much, I've decided to make a crossover story! Anyways, Sorry Etharah fans. This is going to be a PercyXSarah one. Ethan never existed in this story. So imagine the show without Ethan but the gang still ends each episode on a happy note. I do not own MBAV or PJO. Also, School year is coming up so I'll only be able to post chapters/new stories on the weekends. Onto the story.

Percy's POV

I had just parked in the driveway of our new house in WhiteChapel, Ontario. I shook Thalia awake because she had dozed off in the passenger's seat. It was a little over five P.M.

"Five more minutes." She mumbled.

"Thalia, we're here. We've left our old lives behind." I said still shaking her. I thought it was useless and turned to Nico who was right behind Thalia.

"You think you can wake her up?" I asked him.

"Yeah, just be prepared to run." He told me. I nodded and he told me to unlock the doors.

"Get out quietly and get the keys to the house ready."He said moving to the door where Thalia was leaning on in her sleep. He gave a countdown on his fingers. When he reached one, he opened the door and Thalia hit the pavement because she wasn't wearing her seatbelt.

"OW! NICO! PERCY! I'LL KILL YOU!" I heard her scream and Nico was frantically turning the knob to get us in.

"Percy! Unlock the door!" He yelled at me as I unlocked the door and we rushed inside.

"Did we clo-"I managed to say before being tackled by Thalia. I screamed as she started punching me with electrified fists. (Whoever gets the reference is awesome.)

*Five minutes later*

I groaned on the couch when Thalia had finally punching me. Nico had the same torture.

"Ugh. Thalia, close the door. I can't really walk." I asked Thalia after another groan of pain.

"Sure. I can't believe that we're here. We've finally left our old life behind." Thalia said sighing after she closes the door. I remember the day everything changed for us.

*Flashback*

"I can't keep a long distance relationship, Percy." Annabeth told me.

"Why?" I replied barely keeping my heart in one piece.

"We both know the answer to that." She replied. My heart slowly started breaking.

"I won't stand in the way." I told her holding back tears.

"Thanks, Seaweed Brain. Maybe we can have another chance when I get back in four years?" She said pulling me into a final hug.

"Bye, Wise Girl. I'll see you in four years." I told her after pulling out of the hug.

"Bye, Percy." She said before running up the hill and disappearing over the side. I turned to my cabin and started walking there. I managed to keep the tears back until I got inside my cabin. That's when the dam broke. Thalia and Nico came into my cabin shortly before after because I haven't left the cabin since Annabeth left. They comforted me and convinced me to come with them to the sing-a-long. When we arrived at the amphitheatre, we were shocked to see our siblings standing there next to our parents.

"These three in front of us are our most favored children and they will be called the new Heroes of Olympus." Zeus said. Laura, Thalia's half-sister, smiled. Ronald, My half-brother, was making out with some brunette. Lisa, Nico's Half-Sister, was doing the same as Ronald except it was a blond male. I heard Thalia and Nico choke when they noticed the ones that their siblings were making out with were their mates. We just turned around and vowed to leave and never come back.

*Five days later*

We had just bought a car and we're now heading to a house I bought online. It was in the quiet town of WhiteChapel, Ontario, Canada. Thalia was munching on a French Fry while Nico was reading a book in the back.

"Hey guys. How do you think the neighbors are?" I asked them out of boredom.

"They're probably nice." Nico said just looking at his book.

"I really don't know." Thalia said looking out the window.

We just rode in silence after that.

*Flashback End*

"Earth to Percy! Hello Percy!" Thalia said waving a hand in my face. I swatted it away and got up.

"What?" I asked her slightly irritated after that memory.

"We haven't taken our stuff out of the car yet…" She said looking towards the door.

"Let's go get it then." I said getting up and heading towards the door.

*Two hours later*

"So we have our chore lists?" I asked the other two while we were watching TV. They nodded and focused on the television. I immediately sat up and stiffened when I felt some sort of danger coming from two blocks down.

"Hey guys. I think someone's in danger." I told the other two.

"How do you know?" Nico said looking at me.

"I just have this feeling in my gut. We should probably meet this thing about two blocks down the street." I replied.

"Ugh fine." Nico said before going upstairs for his sword.

"I'll get my spear. I already have my shield." She told me tapping her watch. I nodded and she left too. I pulled Riptide out of my pocket and uncapped it. I started polishing the blade while I waited for the others. They came down about three minutes later with their weapons.

"Let's go!" I said before grabbing the keys off the coffee table and putting them in my left pocket. Nico and Thalia nodded before they walked outside to wait for me. I followed them outside and locked the door behind me. We set off down our street oblivious to the fact that we were being followed.

Benny's POV

"Sarah, Bring Erica and Rory over. My new neighbors just left their house with swords and spears." I said into my phone before hanging up and closing it. Not a second after I had closed my phone I heard a something knock on my window. I turned and saw Sarah knocking.

"Can I come in?" She asked. I looked behind her and noticed Erica and Rory just standing behind her.

"Yeah come in." I said opening the window. They jumped in and said hello.

"So what about your neighbors with spears and swords?" Sarah asked me.

"Yeah they just left. Want to tail them?" I asked her.

"Sure! Which way did they go?" She asked me.

"Down the street." I replied.

"Let's go then." Sarah said before disappearing through the window.

*Five minutes later two blocks down the street*

"There they are." I whispered to Sarah as Rory put me down.

"What are they doing?" Sarah asked.

"I don't know but I have a feeling it has something to do with that." I said pointing at an eight headed monster.

"Thalia! Protect the child! Nico and I will handle the hydra!" I heard a male voice say in front of me. I noticed a female walk off to the side and stand in front of a small girl who looked around ten.

"What are they doing?!" Sarah asked to my left.

"They're fighting off a hydra to protect that small kid." I said pointing off to where I saw the female walked off to. I was about to say something else when the guy that held a bronze sword lit it on fire.

"Nico, Cover me! I'll try to get some of the heads out of the way." He said.

"Alright, Percy. I'll try. Hey, Thalia want to help me?!" Nico, as he was known, asked the now known female.

"I'm coming!" Thalia replied. I watched as skeletal hands come out of the ground and skeletons started appearing.

"Necromancer." I said. The skeletons started attacking the hydra with swords, spears, shields, or guns.

"Nico! Draw its attention! I'll freeze it in place." Percy said. I was curious to what he meant before a massive stream of water connected with the hydra's heads and the pavement. It turned into ice and froze the hydra in place.

"I have no idea." I said confused on what this Percy was.

"Thalia! Get over here! My sword can't burst into flames when its wet!" Percy yelled trying to keep the water frozen.

"What do you want me to do?!" Thalia replied.

"When I cut off a head hit it with lightning." Percy said.

"Did he just say lightning?" Sarah asked off to my right.

"Yeah. Shh!" I said waiting to see what happened next. I watched as Percy cut off a head and a flash of lightning struck it, cauterizing the head. They repeated the process till they were at the last head. When they cauterized the final head, the hydra turned into a golden dust.

"Let's get out of here." I turned to the others. They nodded and I got on Rory's back again.

Percy's POV

Damn. That was hard. Anyways, time to focus on the little demigod. I walked over to her and knelt down next to her. I noticed she was shaking out of fear.

"Hey. Calm down. You're safe now." I told her while pulling her into a hug. I stroked her silky brown hair and comforted her till she stopped shaking.

"I-I-I-I- What was that thing?" She asked with a small hint of fear in her emerald eyes.

"That was a hydra. Anyways do you know who your parents are?" I asked her.

"Mortal or godly?" She asked again.

"Godly." I replied shocked that she figured that out fast.

"Poseidon. He helped me across the Atlantic from Europe." She replied. I looked at the others as they stared back at me in shock.

"Who is your parent?" She asked me. When I didn't answer she gave me the most adorable puppy eyes possible. I couldn't resist.

"I'm your big brother." I replied.

"Brother!" She said hugging me tighter. I smiled as did the other two.

"Hey want to go to our home?" I asked her after she pulled away.

"We're going to Camp?" She asked me.

"No. We have a house here. It's safe here anyways. That was the only monster I could feel nearby." I replied.

"Good. I don't want to go to Camp." She said.

"Come on. Let's go." I said getting up and taking her hand.

*Ten minutes later.*

"Is she asleep yet?" I asked Thalia who was just walking down the stairs.

"Yeah. She fell asleep after I sang the lullaby." She said before settling down on the couch opposite of me.

"Nico, should be back with the popcorn for the movie." I told her.

"What movie are we watching?" She asked in reply.

"21 Jump Street." I replied.

"Nice choice." She said as Nico arrived with the popcorn.

"Let's get this show on the road." He said before setting the popcorn down and sitting in between me and Thalia. We all dozed off after the movie ended. I smiled in my sleep as I dreamed of a girl with black hair and brown eyes.

Who can guess that girl? I'm in search of beta readers. Anyone who wants to beta read my stories, just PM me and I'll make you one of three beta readers.