2014, Quirk Books
Series: Book 3 of Nick and Tesla
The Good: This is definitely the best book in the series so far. The kids are being spied on and they have to find out who it is that they can't trust. The book was full of fun and educational science/spy gadgets kids and build themselves. The mystery a lot more entertaining in this book than some of the others, perhaps because it hit so close to home for the characters.
The Bad: The writing still isn't perfect or easy to get through but the story definitely makes up for it in this instance.