Children of Jubilee / Margaret Peterson Haddix.

Enhanced descriptions from Syndetics:

Kiandra has to use her wits and tech-savvy ways to help rescue Edwy, Enu, and the others from the clutches of the Enforcers in the thrilling final novel of the Children of Exile series from New York Times bestselling author, Margaret Peterson Haddix.

Since the Enforcers raided Refuge City, Rosi, Edwy, and the others are captured and forced to work as slave labor on an alien planet, digging up strange pearls. Weak and hungry, none of them are certain they will make it out of this alive.

But Edwy's tech-savvy sister, Kiandra, has always been the one with all the answers, and so they turn to her. But Kiandra realizes that she can't find her way out of this one on her own, and they all might need to rely on young Cana and her alien friend if they are going to survive.

Reviews provided by Syndetics

Booklist Review

The third and final title in the Children of Exile series is all fans could hope for: exciting action, thoughtful examinations of social justice and prejudice, no excessive or gratuitous violence, a logically plotted universe, and an ultimately hopeful ending. Haddix once again changes narrators, this time focusing on Edwy's tech-savvy 13-year-old sister, Kiandra. By switching narrators in each book, Haddix gives readers the chance to see each narrator through the eyes of others, as well as hear their own clear voice. Previously portrayed as a grumpy and self-absorbed genius computer hacker, Kiandra here discovers her connection to her siblings and other beings in general, including initially terrifying alien creatures. Kiandra, her siblings, and friends are whisked through terrifying adventures that include capture, imprisonment, and forced labor. It is Kiandra's developing empathy that saves the group, as she dares to reach out to what she believes are enemy aliens, working together to achieve freedom. Though it won't stand alone, this finale will be tremendously popular with series fans.--Debbie Carton Copyright 2018 Booklist

Horn Book Review

When hostile aliens invade Earth, thirteen-year-old Kiandra (Edwy's older sister from Children of Refuge) and her brothers are sent to a prison planet. There Kiandra must deal with the annoyingly sunny viewpoints of alien-raised children like Rosi (from Children of Exile), while trying to escape and save their home. A slow plot doesn't quite match the high stakes of this trilogy. (c) Copyright 2019. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.