This is the sort of book series that is kind of like crack; you know it's not necessarily good for you but you don't really care because it's so goddamn addicting. A boarding school for teenagers secretly selected to train as spies. Yes please, where do I sign up? It's just so appealing, a concept that is all about light and fluffy entertainment. This book doesn't claim to be anything other than what it is, shamelessly fun and lighthearted, a little bit silly and predictable but filled with awesome adventures, high school romances and plenty of humour. It's engaging and amusing and oh so easy to read, a sort of guilty pleasure that tastes like gooey chocolate and marshmallows and makes me want to go to spy school. I know what this book is, and I don't care. I kind of love it anyway.