I loved The Genius Files: Never Say Genius. It kept me on the edge of my seat the whole time I was reading it. I would recommend this book because it is a cool and fun mystery with a lot of puzzles. I would suggest reading the first book (The Genius Files: Mission Unstoppable) because it would be confusing if you didn't. The only thing I didn't like about this book is that it was a bit repetitive in the beginning.