What does Harry do as Corlath and the army are leaving Luthe's and what does Luthe say to her?

Harry follows a small stream through the forest, only to find Luthe in a small clearing at the Lake of Dreams. Luthe admits the sleepy quality of his lands is encouraged as it makes mind reading easier. Only those possessing strong kelar overcome the feeling, like Corlath and Harry herself. Harry catches herself in mid thought, and although Luthe admits he did not catch it, he gently notes that he believes her question had to do with Corlath. She does not deny it, but simply rises, and Corlath does not question her.