Serena nodded. "SUre...sure..." she said saluting Sebastian like a soldier would do to the captain, as she turned around then started to guard the house as the door behind her closed. "I dont know, why in guarding their house.... why would I risk my life for strangers?" She told herself in a whisper. And it could be true, if he said people wont be happy about them being in this house, it could mean danger...but she will stay guard, for now. If they take too long, she is out.