What is the theme in Gathering Blue by Lois Lowry?

Loyalty is a theme in the book. Jamison, who appears to have Kira's best interests in mind when he defends her during the hearing, hides terrible secrets. He betrays Christopher's trust on the hunt, literally and figuratively stabbing Christopher in the back in order to achieve an appointment to the Council of Guardians. Later, Jamison acts as Kira's protector and father figure, even though it appears he conspired to murder Kira's mother and her mentor, Annabella. Though he feigns compassion, Jamison shows loyalty to no one but himself.