Some secrets are small — the size of a battery, or a button, or a scrap of paper. Other secrets are so big they can bury a man alive, or tear apart a family … or even destroy the world. Omega City was both.
Gillian’s dad is a historian who specializes in Cold War conspiracies and wrote a book about Aloysius Underberg, a brilliant Cold War engineer. But Dr. Underberg is missing and Gillian’s dad has been discredited. When Gillian is faced with an opportunity to solve Underberg’s greatest mystery and prove her dad right, she can’t resist. She enlists the help of her brother Eric, best friend Savannah, a NASA obsessed boy from school (Howard), and Howard’s brother Nate. Others are searching for Underberg’s secrets too, and they will stop at nothing to get them first.
This is an adventurous mystery with a strong female protagonist. Gillian’s team faces life-threatening situations, including nerve gas in an elevator, goons with guns, and scuba diving in unknown waters. I think middle-grade readers will enjoy this thrilling adventure. (for fans of Luck Uglies or City of Ember). Grades 5-8