I'm in the middle of it just now and it's the first book I've read in a long time that i can't put down,it's fantastic.
Quick summary: on a day that becomes known as black Thursday 4 planes crash almost at exactly the same time. 3 children survive,plus one woman who lived long enough to leave a message on her phone, taken by some to be a warning...
As I said, i've not even finished it yet and I've already bought the follow up i'm enjoying it so much.