O.4 is one of those books I've been meaning to read for ages, and now I have finally read it I have no idea why I didn't read it sooner. It is seriously good!
The story is told through Kyle Straker's tapes and intercepted with the occasional narrative of the editor. Kyle's voice really shines and I loved having the story told from his perspective.
The story is really creepy! And very different from anything else I have read. I absolutely loved the concept - I was completely and utterly engrossed. I'm trying not to give anything away as it's one of those stories you really need to go into without knowing much about it and just let it unfold.
Clever, well written and with an ending that will make you really think! I still can't decide what I would do. I can't wait for the next book, 1.4 when it is published in May.