She leaves Cecilia and finds the prince, going together to the place the king mentioned. Standing in her daygown at the window in the hallway in front of her study, Iris could see Benjamin and his party of ten men from where Commander Thornwood was missing. He probably decided himself to stay behind this time to protect his lady. Since the attack in the forest, his attitude has changed so much, he was a step away from swearing allegiance to her.
At that moment, although she was grateful for the knight's service, it didn't make her much happier. She felt betrayed watching how her husband was leaving once again after all his promises. Of course she understood it was urgent, like it had always been, but she could still not see why he must go himself.
