"Percy, come here!" Annabeth yelled from the top of Half-Blood Hill.

Percy raced up there. He and Annabeth had known someone was coming but Annabeth was on waiting duty. "Need to get her to the infirmary?" He asked.

"Yep." Annabeth's eyes scanned over the unconscious blonde haired body. Percy picked up the girl bridal style and carried her to the infirmary with Annabeth.

Percy and Annabeth arrived at the infirmary. "I'll wait until she's conscious. Go ahead with whatever you're doing." Annabeth pecked Percy's lips and pushed him out the door.

I'm skipping 3 hours

Annabeth watched as the girl's eyes fluttered open. They were gray-like hers. "Hi. Welcome to Camp Half-Blood. How about we get you on your feet onto the porch?"

"Okay." The girl croaked.

Annabeth helped the girl up and put her arm around her to help the girl keep balance. "Do you know you're a demigod?" Annabeth asked.

"I'm from Greece. My parents worshiped the gods and goddesses. I was a gift from Athena." The girl said.

Annabeth's face twisted in confusion. "Do you know who your real parents are or…"

"No names of my father. Just my last name." She smiled.

Annabeth pondered this thought. "What's your name anyways?"

The girl turned to her. "I'm Annabelle Chase. And you are?" Annabelle introduced.

"Oh. My. Gods!" Annabeth shrieked loud enough for the whole camp to hear and all came running.

Percy jumped onto the porch first. "What's wrong Wise Girl?"

"T-That-that's m-my sis-ter." Annabeth said through her shock.

"I didn't even know that." Chiron said.

Rachel joined Percy and Chiron on the porch. "Well by the looks of it-" Rachel began but then the Oracle took over.

"Daughters of Athena shall hail

Spawn of the sea shall choose

One will fail

The other cannot lose."

Many gasps were exchanged. "Annabelle and I will rule. Percy will choose. One will fail and the other can't lose." Annabeth quickly gathered.

"Well, looks like there will be some competition." Clarisse called out.

Annabelle glanced at Percy and her eyes became huge. "He's hot."

Annabeth slapped her sister's face. "Don't look at my boyfriend." She snapped.

Annabelle smirked. "Looks like the competition starts now."

With that, Annabelle spun around and walked to the Athena cabin with Malcolm following Annabelle to show her the bunk she'll be sleeping on.

People were still staring. "Go back to your regular camp activities." Chiron yelled and turned to Annabeth and Percy. "Good luck." He said then went back to archery class.

"Percy?" Annabeth asked quietly.

"Yes?"

"You aren't leaving me, right?" Annabeth looked up into Percy's eyes.

Percy smiled down at her. "I would never." He leaned down and kissed Annabeth. His hands cupped her face and hers went around his neck.

(((())))

Annabelle watched outside the window. She was curious about how her sister was going to play such a dangerous game. Annabelle was very competitive when it came to boys.

"You should give up now." Malcolm said behind her.

"Why should I?" Annabelle spat.

Malcolm turned Annabelle around. "Annabeth has done some things to keep her boyfriend that she is not proud of. She has stabbed girls, punched them, slapped them, and helped the Stoll's prank people, stink bomb people's cabins, and a whole bunch of other stuff. Annabeth loves Percy. You shouldn't mess with her."

Annabelle squirmed out of Malcolm's grip. "I'm going for a walk around camp. Goodbye."

Annabelle walked throughout camp and stumbled upon one thing that could be the key to winning: Annabeth was running after Percy, giggling, to Annabelle was guessing Percy's cabin.

Now if she could just disguise herself.