Having a super power would be great...wouldn't it? Merrin Grey has one! But, unfortunately, in Merrin's case, it's not enough. You see, you need two powers in order to be considered a Super and Merrin has just one. That makes her a "One" and in everyone's eyes, including her own, that's not good enough. It means she isn't complete and she so desperately wants to be. 
 This was a very unique story. I enjoyed both the characters and the world that the author created. This futuristic world included some amazing stuff...cuffs that did everything from give you access to certain locations, to texting capabilities, to holding your personal information and home computers that did household chores such as making dinner and acting as security alarm systems (this was pretty cool, I think I'd like one of these for myself!). But all these technological and scientific advancements were not necessarily used for good. And that's where the adventure truly begins. Merrin and Elias don't know what's happening around them or who they can trust. They're kept in the dark by both their parents and the Lab that runs experiments to improve super powers. This book had several twists and turn that not only kept you glued to the pages but that also had you building conspiracy theories in your mind. Some of mine were right...some, well, not so much. 
 The characters were well written and easy to like. Merrin was fiercely independent and determined. She believed strongly that, either through her own determination or through the scientific advances made at the lab, she would one day learn to fly. She yearned for it and worked towards it. There were times where I did want to shake her a little. She had a tendency towards a double standard and quite often got angry at Elias for keeping things from her when, in reality, she was also keeping things from him. Speaking of Elias...I loved him. He had Merrin's best interest at heart always and he was a super sweet guy...no wonder she fell in love with him. The secondary character were also a big part of the story and, together with them, Merrin and Elias start to see the world for what it is. 
 This is one of those books that's difficult to review without giving away spoilers because so much happens so you'll have to read it if you want to know all the secrets. It's also probably better to read it in just a few sittings rather than over a long period of time. I say this because at times both Merrin and Elias can be a bit cryptic in their conversations and, as I've already mentioned, keep things from one another and although that works for the story, it can get a bit confusing if you're away from the book for too long. But, as I found out, that's not really a problem because you'll want to keep reading it once you've started!