Young adult science fiction, second in a series.

A teenage girl struggles for her freedom and safety in a strange place, and must decide whether to risk it all to return to her home on the moon to try to rescue her brother and sister. Along the way, she faces decisions about friendship, love, loyalty, the morality of wars and rebellions, and more.

I picked this up in a Little Free Library in Spooner, Wisconsin. I finished it this morning and will pass it on in another LFL or similar spot.