When Piper got to lunch there was an open spot across from Thalia,

And next to Luke.

She sat down and started talking with Thalia, she didn't trust Luke.

"Yo Lucas Collin Castellan the third pass me the biscuits," Thalia said in the middle of the conversation.

"Sure Thalia Kathleen Marissa Grace the first," he said.

But Thalia obviously did trust him.

"Oh Piper have you met Luke yet?" Thalia asked as she bit a biscuit.

"Yes," she muttered.

"Aw don't be like that you know you love me," he nudged her.

"I met you once," she said.

She saw Annabeth staring at Thalia, Luke, and her from across the hall. She looked, frustrated...

"Ooh touchy touchy...," Luke commented.

"I gotta go," Piper said and left.

She sped towards the exit, and bumped into Jason.

"I-I'm sorry," she said. She felt her face get hot.

His face was redder than hers. He stuttered, fumbled, and then just ran to his lunch table.

Piper could tell he was afraid of her still.

She headed back to her dormroom and wrote a letter while she waited until she had to leave for class.

I miss you here at hogwarts. Its a shame you missed out. Its unfair that you missed out. You should be here with me. But I know thay can't happen. If there was anything I could have done I would have done it. I miss you. I hate you for leaving. But your still my best friend. Still can't believe your gone.
-Piper

She gave the letter to her owl, Cody, and she had him try and search for her, but he usually would return with the letter.

No one remembered her, no one realized that Reyna was even missing.