4 Stars!!!
There isn't much I can say. I haven't finished it yet, (currently on page 133) but it's good.
For me, a good book must do several things.
1. It needs to have a unique idea, or at least have a few twists and turns that aren't overly cliche.
This isn't my first novel about teenage spies. I will say this is the first one I've gotten my hands on where the main character is male. And already this story is taking a turn I didn't expect. It's making me think and anticipate what's going to be on the next page. All good things.

And since I've read hundreds of books (and will probably read hundreds more before I die) and watched equally as many anime, I know new ideas are hard to come by. I appreciate the amount of imagination that went into this book. But just having a newish premise isn't enough to draw me in and hold me. I will admit that even I can be suckered in by point number 2.
2. Good cover art.
Cover art, like the physique of the love interests in the story, is part of what attracts me to the subject: i.e., the book. If the contents of the book show no hope of living up to the expectations the premise and the cover have set, then there is no point in reading further. Lucky for me Caden, Dylan, and their circumstances are holding me captive.
3. The story & writing style
The story flows well and doesn't bog you down with too much description. Since it has a contemporary setting and we all know what smart phones and cars look like, it's easy to bypass all the unnecessary fluff and get right to the important issues. How the characters think and feel.
Since this story is told by the main character, his feelings are the only ones we personally get to experience. So far the author has done a great job of recreating (at least for me) the feeling of butterflies and excitement that come with all of life's big firsts. Maybe it's because I was a hopelessly romantic teenage girl once, but the way in which the protagonist tells the story easily brings back those memories and emotions. And even though I know someone is going to die in the end, I'm really hoping it won't be the one character I've grown attached to.
As always...Happy Reading!!
Side Note: I would like to add that you shouldn't choose a book by its cover. I have done just that many times before (approximately 100 or so times) and been disappointed. But this time, I took a leap of faith on title and cover alone and was rewarded. So I guess 1 out of 100 isn't bad. ^_^