Marquess Lysander didn't expect Isabella to run away from the mansion.
He only went out for a while to find out what commotion was going on outside his mansion. However, he found nothing there. There were only a few knights, who had suddenly been injured without knowing why. Some parts of the mansion also look messy. The injured maids and knights said that there was an intruder but they could not see or catch him. Then, when he returned to Isabella's room, the woman had disappeared.