“I used to send my characters into a fire that necessarily consumed them, but I have learned, a little, how to send them through the fire to a new place. The characters who do not change — most notably Nakota in Cipher, Bibi in Skin, and Lena in Kink — are motivated by an essential selfishness or self-centeredness, an unwillingness to relinquish control to the process, a refusal to become.”