Shades of Gray

Shades of Gray - Jackie Kessler, Caitlin Kittredge
This picks up where Black and White left off. While many questions are answered (extrahumans and their origins, etc), there was a few things that were left unanswered. Mainly, the whereabouts of a certain evil asshat. Overall, I enjoyed this. Not quite as much as the first one though.
I liked that Jet (Joan) and Iri (Callie) join forces and overcome their shared pasts. I liked the end. It wass fitting and a new path.