One day when Ben came home from school, a man was in his 
house. The man takes Ben to a special school that trains spies, but when he gets there he finds out that assassins are trying to get into the school and that the school is not safe. He has to make some friends and find out what the problem is, but then he finds out that he is in the middle of it. Ben needs all the help he can get to solve who the mole is and what he is trying to do.
If you like mysteries that need to be solved then you will like this book. One of my favorite parts is when they were trying to find out who the mole is and keep getting it wrong. This is an exciting book with lots of gun battles and has a lot of humor, which keeps the book fun and enjoyable. This is the first book of the series.