This book had absolutely everything I've been looking for. Not only was it full of adventure...it contains every descriptive word possible that connects with you in an emotional and mental level far beyond any book was able to provide for me. It had passion, fear, love, violence, mind-blowing details and it gave inquisitive thoughts about how energy surges into a variety of matters within humanity, but specifically within the main characters of course. Mac (Aaron) and Bonnie were by far my favorite of several characters introduced in the book. I enjoyed seeing how their relationship formed even in the smallest of details. I was able to connect with these two characters instantly. Bonnie really came a long way as she got stronger mentally, emotionally and physically without seeming like a machine. Aaron on the other hand, is without a doubt bad ass 'human' machine as I like to describe. Oh yea, those erotic scenes are pretty fantastic if you ask me. This book is on a high level mentally so always keep an open mind when reading this post apocalyptic book. Yea, I know, my first thought was, "hmm... If it's not about zombies, then what the hell could it possibly be?", well open this book and you'll be taken into another world far beyond what you may think. I'll definitely read this book again as it's challenging and enticing! I recommend this for anyone who's into SciFi added with a little bit of everything for everyone.