Ze embraced Brad in a friendly way but it still confused the grade eighter. I don't know if that's how you learned to writer an "eighth grader", or a "grade eight", but I've experienced wording with other dialects of English and grade eighter just doesn't sound right, it would sound better as "eighth grader" or "grade eight".
“I know what I saw,” I insisted. “This thing was huge.”
“How huge?”
“At least this tall,” I held my hand level with my shoulder. “But it was probably taller. I only saw it from a distance.”
“Bullshit.”
“What are you guys talking about?” Lauren asked as we reached our table in the only-just shade of a dying tree.
“Nothing,” we said in unison. Zeda and I exchanged a look and grinned. We were like that, keeping stuff to ourselves. It wasn’t that we couldn’t tell the others, we just liked having our own secrets.
Phoebe rolled her eyes. “You two.”
“I don’t believe you,” Zeda carried on. They wouldn’t guess what we were talking about.
“I’m telling the truth,” I stressed. ‘You just gotta trust me.”
“Trust you? Ha-ha,” Zeda mock-laughed. “You can’t pull that one on me again.”
I sighed. “Now I know how the boy who cried wolf felt.”
“Hey, Emm-aaah!” Phil called as he walked by with his cronies. “Call me, babe!”
Emma blushed and ducked her head. One of Phil’s friends - the quiet one, Mark, I think his name was – gave me a shy smile. I smiled back and Zeda giggled.
“Kasia and Mark sitting in a tree-”
“Zeda, you are so immature,” Emma griped. “If Kasia likes Mark that’s her business.”
“I don’t–”
“Sure,” Lauren teased.
“I think you two would make a cute couple,” Phoebe wasn’t teasing as she watched Phil, Mark and the rest spray water at each other from the bubblers.
“And I think you guys should leave me alone before I bash your heads in,” I smiled, which was threatening in a way. They all shut up.
“Wanna walk around?” Zeda asked. This entire conversation between so many people is confusing. Also, none of the people talking with her are described in appearance and manner or introduced properly of their relationship with Kasia. It's too vague and the reader cannot picture the scene because of the lack of description, although the dialogue is realistic and very interesting.
Continuing to my room, I felt the urge to go for a run. The bush spread out behind the back fence and was all too inviting but then I noticed something that shouldn’t be.
A black shape. It moved through the undergrowth, stopping now and again. I couldn’t be sure, but I thought it was the wolf. I didn’t know if I should report it, people might be in danger, but no one would believe its gargantuan size. I turned to my desk and began my homework, pondering on the things I could say to the council or whoever. Usually I wouldn’t bother with homework, but we’re learning about genetics in science and I was pretty interested.
But I was too distracted to do homework so I went back to the window and received a huge fright. The monstrous black wolf was sitting in my backyard staring at me. I stumbled back onto my bed, adrenalin pulsing through my veins. Add more description; maybe have her breathing hard in a panic or gripping the sheets from the shock or something along those lines. I should’ve gone down stairs and made sure all the doors and windows were closed and locked but I couldn’t bring myself to move. I crawled back to the window and peeked over the sill. The wolf was gone, and again I wondered if I was mad. Right here, I liked how you described her disbelief and skeptical view of whether or not she's actually seeing things or if she's right. Although, again, it's a little too fast and doesn't give us much to think about when she dismisses it so quickly.
