Harry Potter Crossover (Percy Jackson)

I'm Not Alone... Am I?

Harry POV
A loud crash came from outside. In walks Remus, carrying a half-concious George.

"Bloody hell." Ron whispered.

"Hurry, Molly!" Remus shouted.
            Mrs. Weasley returned with her medical bag and starts to bandage George.

It's all my fault. If it wasn't for me, no one would've gotten hurt.

Ron and Hermione seems to notice my great displeasure and walks towards me. "It's not your fault, you know. It's you-know-who's fault for wanting power." Ron comforted me. I smiled, "Thanks Ron."
Just then, Percy groaned.
"How are you feeling, dear?" Mrs. Weasley asked.
"I feel ok."
"Good. Harry here, poured water on you." Mrs. Weasley said as she sent a glare my way. I grinned sheepishly.
"Oh good. Can you some pour more water on me? Preferably a whole bucket. Water heals me."
           Mrs. Weasley looks worried. "Dear, I think you might've bonked your head." "Harry! Did you not tell her anything?"
"Well, I tried but then the others came back so..." I explained. Percy groaned and made a ball of water and shaped into a girl, then a pegasus. Mrs. Weasley, once again, was speechless.
"H-how-?" she stuttered. She looks like she's seen a ghost. Which she had at Hogwarts but yeah.
"It's possible for me because I am the son of Poseidon. Harry's not lying." Percy grinned at me. I grinned back.
"Oh, and I didn't catch your names. I just call the girl," he pointed at Hermione, "walking encyclopedia. Him," he pointed at Ron,"The smallest red head, and I don't know the rest of you."

Hermione looks shocked at her nickname while Ron gave him a weird look.
"Oh. My name is Molly Weasley but you can call me Mrs. Weasley." Mrs. Weasley introduced.
"I'm Ron."
"My name is Hermione. Nice to meet you." Hermione held out her hand. Percy took it but not before wincing a bit in pain. "Sorry. I forgot." Hermione said sheepishly.
"S'ok. I've had worser injuries before." Percy replied. Worser injuries? How is he still alive then? I look at Ron and Hermione. They look like they're wondering the same question. Mrs. Weasley just looks horrified.

"George! You're awake!" someone spoke excitedly.