The Roar by Emma Clayton

I found this book on my local library's recommended books shelf, and I gave it a rating of four out of five. The Animal Plague forty years ago forced surviving humans to build a huge wall for protection. The northern parts of Europe, Asia, and North America are the ony places on Earth where humans are able to live safely. Today, Mika is a mutant, twelve-year-old boy, and most people believe his twin sister is dead. However, she was kidnapped by Mal Gorman, and doctors have been performing tests and developing her special abilities. Also, all children are now required to drink Fit Mix, go through intense physical training, and play the Pod Fighter arcade game. Mika doesn't want to take part in the program, but a counselor secretly says it will help him find his sister. She also tells him that his life is in danger, but Mika won't stop until he's reunited with Ellie. Gorman has evil plans for all of the children remaining on Earth, and he won't let anything stop him.

The plot mostly follows Mika's character, but it shifts to Ellie and Gorman too. Ellie's powers frighten Gorman, but he feels there is some way to control her. Mika starts to show some of the same powers, and the twins can sense each other's thoughts. This mostly allows Mika to excel as a pod fighter pilot, and it keeps him motivated to find his sister. The thickness of the book might scare some readers, but the events and font size allow the plot to move along quickly.