The Unwanteds #3 Island of Fire by Lisa McMann*

My ten year old loves, loves this series.  He is reading the series to himself.
Alex continues to have to problem solve to restore Artime and his friends.  His twin brother, Aaron, resides on Quill and rises to power.
A very exciting story!
Warning/point to discuss: Alex has a girlfriend and they kiss.
*Highly recommend.
-Borrowed from the library.