The Tomorrow Code

The Tomorrow Code, by Brian Falkner
Tane and Rebecca are all that stand in the way of the end of the world, but they don't know it yet. All they know is that they seem to be getting cryptic messages from the future. They start out trying to decode strings of 0's and 1's using Tane's computer and before they know it, they're buying a winning lottery ticket, sneaking into a highly secure genetics laboratory and researching buying a submarine. The New Zealand setting is at once exotic and familiar and the details about Maori culture are woven seamlessly. Science fiction and adventure--a great combo. Coming in October.