The child of the Sea (Leo Valdez x reader)

Chapter one

Percy's POV:

Everything had just got normal after the second war with Gaea. No missing amnesic campers (to the relief of both camps) That was until the unexpected happened. I was walking with Jason when we hear campers screaming. We don't even hesitate we just ran. "What's going on?!" I yell as we get closer. Annabeth points up at the sky. I don't see anything that is until I see a Pegasis falling from the sky... and what looks like a human girl. As they get nearer to camp we could see they were unconscious and badly wounded. "EVERYONE WATCH OUT!" I yell. Everyone ran in different directions as the girl and Pegasus landed on the grass. Travis being the idiot he is somehow found a stick and started poking the Pegasus. The Pegasus jumped up and kickedhim into the air and he fell flat on his face. The Pegasus neighed in triumph "Haha." Connor was examining the girl as if he was a doctor. Clarisse pulled him by the collar and said "You are an idiot and I am saving your life here.". The Pegasus looked at it's owner but didn't do anything as if it knew something was about to happen. And something did happen. A sea nymph appeared out of the lake. "Hello? Who are you?" asks Annabeth. "My name is Nyssa." says the nymph. "Nyssa you finally arrived." says Chiron who came out to see what all the commotion was about. "You know her?" I ask. "Yes. she was supposed to come earlier with a camper." said Chiron shooting Nyssa a glare. "Well she's here isn't she?" says Nyssa. "I did not mean her falling out of the sky." Chiron sighs exasperated. "She's stubborn." shrugs Nyssa. We all just stare in disbelief. "She's the new camper?" I ask. "Yes Percy." Nyssa says. "How do you know my name?" I ask. "Oh your father always talks about you." she says.Chiron clears his throat. "Oh right. Healing her!" remembers Nyssa. She touches the girl and water surrounds her and in a blink of an eye she's healed. "How? Only children of Poseidon can themselves with water." says Annabeth. "Yes. She's Poseidon's daughter." Nyssa explains. "Wait... she's my half-sister?!" I say. "Yes."Nyssa says. The girl wakes up and groans. "Ugh... Nyssa we're here?" the girl says confused. "Hello dear and yes we are here. Now I have to go. Ta-ta." Nyssa says before disappearing. "Typical Nyssa." the girl mutters. The Pegasus neighs in agreement and she hugs it. "Oh thank Gods you're all right." she says. I clear my throat. The girl looks around. "Oh Hi! Sorry I didn't see you. My name's Y/N Thomas daughter of Poseidon." she says extending her hand. I shake it. "Percy Jackson son of Poseidon." I say. "I know. Dad talks about you." she laughs. "He does?" I ask. "Yeah a lot. Talks about how you save the world all the time." she says smiling. 'She doesn't sound jealous.' I thought. "You're not jealous?" I ask. "No! I'm happy actually to finally meet you." she says. "Come on I'll show you to the cabin then you can rest." I say. She nods. "Okay thanks." she says. 

Time skip: A few hours

We were sitting round the campfire and I was introducing Y/N to my friends. "This Leo Valdez. Leo this Y/N Thomas." I say. "Hey I saw your big dramatic entrance." Leo jokes. Y/N laughs. "Thanks. It was definitely dramatic." Y/N says. I look back and through between them. It looked like they were going to become good friends. I wouldn't have expected Leo out of all people because he's a bit awkward around people being better with machines and all. Piper and Jason walk over. "Oh and these are Piper Mclean and Jason Grace, Leo's best friends." I say. "Hi! I'm Y/N." she says. She and Piper start talking girl stuff I don't understand. "Well you're going to have a new sister who's your age. New experience huh Perce." says Jason. I laugh. "I bet Thaila a bit annoying huh?" I ask. "At times." Jason says. I've already introduced Annabeth and Y/N to each other and they really hit it off. "I'VE GOT MARSHMALLOWS!" yells Travis.  Everyone rushes to get one and in no time we're sitting around the campfire roasting s'mores. Y/N is sitting with Annabeth and Piper looking like she's having the time of her life. I smile. 'This is going to be fun.' I think.

Time skip: The net day 

Waring: Mention of abuse and drowning 

Y/N POV: 

I wake up in Cabin 3 looking around taking in the unfamiliar surroundings. Last night's campfire was amazing. I become pretty close with all of Percy's friends... especially Leo. Anyway I had become good friends with his other friends including his girlfriend Annabeth. I got along pretty well with her and Piper. Jason was cool he said he'd introduce me to his sister Thiala who I had heard stories about. Anyway Nyssa can Iris messaged me saying my old friend Marcus (Mark) Smith was already a camper at CHB so I would probably see him. I was nervous since I hadn't seen him since I was six... after the accident. Mark was like a twin brother to me and honestly was annoying sometimes (most of the time) but we were still best friends. I shower and get dressed then Percy shows me around. We head to the infirmary, the lake and arena. "Pick a weapon." Percy says. I see a dagger made of Imperial Gold. "That doesn't look Greek." I say. "Oh Camp Jupiter gave us some of there weapons as a present and we gave them some of ours." Percy explains. I nod. "I like it." I hum. "Figured you would. You know Mars himself used that." Percy says. "You mean Ares?" I ask. "No Mars his Roman form." Percy replies. "Oh! Cool!" I say. "Come on let's go." Percy says. I grab the dagger feeling power. Of course in the Dining Pavilion I bump into Mark. I stare at him and he stares at me and for some reason everyone is staring at us waiting for something. A smile tugs on his lips and he chuckles and I smirk and laugh. "Marcus Smith." I tease using his full name. "Y/N M/N Thomas" he teases. I hug/tackle him and he hugs back. Okay let me explain. Mark is the son of Apollo and my best friend. Also he didn't look like other Apollo kids because he had brown hair and brown eyes instead of Blond and blue eyes.I've known him since I was two. Our mothers were best friends and grew up together so we did too. Well... that was until mom died in a car accident... when I was six. After that my Aunt Sabrina took me into her custody... but she hated me. I was physically, mentally and emotionally abused until I was ten. Then I ran away to a lake and tried to drown myself to get out of my misery but being Poseidon's  daughter I couldn't. Instead Nyssa "found me". What I'm guessing is Dad felt bad for me. At first I hated Nyssa because I thought she was trying to replace mom and I hated Dad because he had let me suffer but over time I opened up to Nyssa. She was a mother figure as much as I hated to admit it. I learned to forgive Dad but deep down I still don't but I won't tell anyone that. So back to the present, I broke the hug. "I missed you." I whined. "What happened after the... you know." asked Mark. "Oh... Nyssa found me." I answer. I wasn't exactly lying, but I left the part of getting abused, running away and trying to drown myself out. I was about to speak when a voice from behind from behind spoke. "Do you need anything Mark?" interrupted Percy putting his hand on my shoulder. I look up at my half-brother confused. He and Mark glared at each other before Mark spoke up. "No. I was just about to leave." he said. "But-" I start but Mark shakes his head and walks off. Percy puts both hands on my shoulder. "Was he bothering you? Answer honestly." Percy said. "No what was that about?" I ask. "He's just.. known for flirting with new comers." he said. "Percy don't worry he's just a friend." I reassure. "Sure that's what everyone says." Percy says sarcastically with a scowl. I sigh and we head to the Poseidon table. On the way I get weird looks probably because of me and Mark (mostly from Apollo and Aphrodite (minus Will, Piper and Mark) cabins. Of course the table gets filled with a blue drink, blue pancakes and syrup. 'He's blue obsessed.' I sigh. I got Nyssa famous waffles with tasted amazing. After Percy had finished he went with Annabeth and Mark came over even thought it was against the rules. He a troublemaker okay? I didn't mind since I enjoy Mark's company. I look at Chiron my eyes pleading for Mark to stay and Chiron sighs and let's him not to cause drama.