The Tomorrow Code

Tane and Rebecca aren't sure what to make of it. A sequence of 1s and 0s, the message looks like nothing more than a random collection of alternating digits. Working to decode it, however, Tane and Rebecca discover that the message contains lottery numbers . . . lottery numbers that win the next random draw!
Suddenly Tane and Rebecca are rich, but who sent the numbers? And why? More messages follow, and slowly it becomes clear-the messages are being sent back in time from Tane and Rebecca's future. Something there has gone horribly wrong, and it's up to them to prevent it from happening. As they follow the messages' cryptic instructions, Tane and Rebecca begin to suspect the worst-that the very survival of the human race may be at stake.
Already a successful children's writer in his home country of New Zealand, Brian Falkner makes his U.S. debut with The Tomorrow Code.