(I'm sorry this is so short.) 

Kassandra frowned as Hiro ran away. She wondered just where he was going, and when he'd be back. She nibbled at the fish she was given, trying to make it last since she wasn't sure when they'd be more. Without much waiting, Hiro was back, his breath heaving and his face wet. She wondered if he had been swimming. But there was a female with him, one she hadn't seen before. She tipped her head and swam closer, until the wall was the only thing between them.

"Hiro." She heard. Then: "Kathy." 

A new ally, perhaps? That would be good. Kassandra smiled, doing her best not to seem afraid, and spoke loud. "Kassandra!" And she indicated herself. "Hiro - is this a friend?" She spoke again in her own language, slowly. She wondered what this new person was going to think. Would she become curious, like Hiro? Or run away like the others?