Ava watched the stranger with a bit of curiosity. Living in the vaults with several of the villagers when the town had been attacked had made Ava familiar with most of the people (even if she did not know all of their names) though this man didn't seem familiar at all. Either he'd never stayed with the rest of the town during the attack, or he was new. She carefully plucked a blade of grass, placing it between the pages of the book she was reading as Oliver introduced himself. After all, she was due for a break anyway.
"Ava Slytherin." She said carefully. She could already tell that he was one of the many future men, but could not give any more of a guess than that. Her eyes scanned the surrounding area, it wsn't that she was uncomfortable being alone with the man, but that it was always a good idea to keep an idea of the surroundings when meeting someone new, just in case.
"Shouldn't you be working?" Ava said, though it was less accusatory and more curious. It was then that she decided that he must be new, since it seemed that everyone who'd been here before the attack had an almost single minded determination to fix the village quickly.