This book took me forever to finish. Partly because I was juggling three books at any given time and partly because it had its ups and downs. I would get sucked into the amazing detail and super spy like action but then Kaia would do something really stupid like try to abandon Oliver at a random gas station and I would just have to set down the book. There was also a lot of give and take with the characters and a LOT of miscommunication. Which helped character growth but still really ticked me off at points. Overall I would say its pretty good with plenty of crazy action scenes and a pretty unique story. What threw a wrench in it was the ending where everything got wrapped up into a neat little bow in a matter of like 5 pages. If that. It was just so... anticlimactic. With all the traveling and gun slinging and henchmen bashing Kaia and Oliver did I was hoping for more of a bang at the end. Or a lead up into another book? 
 Either way I'm happy I read it but don't plan on running out to buy it.