What worked: Fast-paced sequel that continues the plight of two of the Final Six candidates. Naomi is still trying to come to terms with being separated from Leo and also the doubts she has on the mission. One thing she has questions about is the RRB serum that the crew has to take. Dr. Takumi and General Sokolov insist it's to help protect them against the radiation on the planet Europa, but Naomi doubts that. Her determination to find the truth have her butt heads with more than a few of her crew-mates, including Beckett, the nephew of the President.
Leo at first is very excited that Dr. Wagner has recruited him. When the doctor offers him the opportunity to fly another ship to meet up in space with Naomi, he jumps at the chance. Even then he questions the real motives of Dr. Wagner.
There's lots of action throughout with Sci-Fi terminology that at times confused me. The interactions between the characters was fast and moved the story along. It's near the end of the story that the real horrors show up. I was glued to the pages, wanting to know what exactly was on the planet. Are there hostile aliens? Why did the crew have to take the RRB serum? And what did all of this have to do with the DNA testing Dr. Wagner did?
Thrilling ride through outer space with a chilling major reveal at the end. Hope there's another book in this series that will address the cliffhanger ending. Fans of a space Divergent are sure to be riveted by this engaging series.