Rebellion (The 100 #4) by Kass Morgan
Publisher: Little, Brown Books for Young Readers
Goodreads Summary: 
Centuries after nuclear war destroyed our planet, humanity struggles to rebuild. It’s been a month since the dropships landed and the Colonists joined the Hundred on the ground. The teens, once branded juvenile delinquents, are now leaders among their people.

The Colonists and the Earthborns are celebrating their first holiday together when, to everyone’s horror, they’re attacked by a group of strangers whose unusual battle cries fill the air. The newcomers kill scores of people, seize prisoners, and pillage crucial supplies. When hotheaded Bellamy and his analytical girlfriend Clarke discover that Wells, Octavia and Glass have been captured, they vow to get them back at all costs. But as they go after their new enemies, Bellamy and Clarke find themselves increasingly at odds, unable to agree on a plan to save their friends.

Meanwhile, Wells, Octavia, and Glass are being slowly brainwashed by their captors, religious fanatics with one goal: to grow their ranks and “heal” the war-ravaged planet… by eliminating everyone else on it.

But centuries of radiation exposure have taken their toll, forcing the cult to take drastic steps to survive. And unless the rescue party arrives soon, the teen captives will face a fate more terrifying than anything they could imagine. In this thrilling fourth installment, the hundred fight to protect the people they love on the dangerous planet they always dreamed of calling home.
Rating: 3.5 Stars
A group calling themselves the Protectors invades Clarke, Bellamy, Wells and Glass's peaceful home. Clarke and Bellamy will both do anything to get their friends back, but their thoughts have opposite patterns. Glass has a tough decision to make while Wells must pull off a devious fa├žade.

As I've been watching The 100 TV show a lot recently I immediately noticed all the differences. The first three books in the series I read about May 2016 so it's been quite a while. The main characters go through some stuff but there isn't any major development except between Clarke and Bellamy.

Rebellion seems to make Wells's/Glass's perspectives lesser than Clarke's/Bellamy's. Wells and Glass also had some big decisions to make but not concerning any of the characters I care about. The most extreme emotion I felt during Glass's perspective is worry, but I didn't feel anything at all except in one scene of Wells's perspective.

I like Rebellion but I can't love it, there's not enough happening throughout the book (though the ending did make me sigh in victory and happiness!). I predicted a lot of the courses of action which resulted in me thinking that there should've been more hardships and plot twists. I hardly ever say this, but the characters got off way too easy, which made the book plain. The characters were okay but still not great. If you're looking for a relaxing quick read, this series is a perfect fit.
Purchase Location: Borrowed From Library
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Recommended for: Fans of outer space and sci-fi.