What gift does Ky give to Cassia and why does she withhold her feelings from him?

Later, Ky gives Cassia a gift. He tells her how to obtain illegal information. There is a crescendo of tension building in the book so the reader knows this information will most likely become pivotal to the story. Nature once again adds serenity to a tense situation. In a dark world, Ky's gifts offer Cassia hope. Still, she doesn't feel free enough with him to be completely honest with him. Just as she holds things back from Xander, she holds the truth of when she really noticed Ky back from him when he asks. He tells her when he first noticed her, and it's a scenario which shows her caring and creativity - a creativity she personally thinks she lacks.