Bellatrix was not stupid. She knew that beating the girl would result in most of the island wanting her head, and soon as she had returned to the bungalow, she had gathered some clothes, food, and her journal, and started looking for somewhere to go.
She had stumbled on the caves happily, and made herself home in one of them. She didn't know if Tom had heard of what she had done, or what he thought, and was upset by the fact that he seemed to have no interest in her. Even in her time, he was always asking to have her around, he knew that she was one of his most loyal, and she was rewarded for that. Going from that, to this time, where he knew nothing of her, was hard on her. She almost wished she could go out and find someone, perhaps that little Ariana chit, and make them hurt. Only the thought that that would get the island more riled up was stopping her. Upsetting them was one thing, going after anyone else this soon would be suicidal.
Bellatrix was eating a mango when she saw someone walk into the caves. She got up slowly, leaving the mango on her blanket, and took quiet steps towards him. Still, the sand shifted, and she smirked as he said her name. "You know me. Do I get the pleasure of a name?" She smiled kindly at him, much as she had at Helena, waiting to see what he would do. If he tried going after her, she had a plank of wood she had found resting against the cave wall.