What’s that thing lighting up on your wrist? Oh ummm… there’s something I didn’t tell you guys about where I’ve been and what I’ve done… Exo is a book by the author Fonda Lee she is an amazing author, she wrote other books like Zero Boxer, and crossfire those are great books as well. The action in this book is amazing and the mystery gave me chills a couple of times, and if you like a book with those WOW moments this book is definitely for you. There are really two types of character Donovan Reyes (The protagonists) but there are also aliens (The antagonists). The setting in this book is pretty futuristic if you ask me which makes the What’s gonna happen next” question so much better. The aliens have tried killing or destroying Earth before. This time though it’s a whole different story what will happen will the aliens with their high tech weapons come out on top or will Donovan and friends win it all. Donovan though, has a secret that he’s kept from his friends for a long time and they’re just finding out during an alien attack will Donavon tell them what they want to here or will he tell them the truth. Donovan and friends are only 15ish it didn’t give an exact age, but they know what they’re doing usually but an alien attack I guess you’ll have to find out that to. But really I’d recommend this book to anyone who is over the age of 9 who likes mystery or adventure books.