A review by rebeccadanielle
Agent 21 by Chris Ryan

4.0

I have read several teen spy books but excluding the Spy High series, they have all been targeted at girls. Agent 21 was awesome, it's got some great characters, the story is exciting and moves along at a decent pace. This is a great first book in the Agent 21 series. Nothing dragged down this book and I'm glad I decided to give it a try.