From the Inside Flap
But Murdoch discovered records of messages he knew he had never sent. Were many futures possible? Could a message from Future X alter the past -- and thus wipe out Future X? But who would be foolish enough to send a message that could eliminate his own existence?
Then disaster struck. An advanced fusion reactor threatened to destroy all Earth. Grimly, Murdoch sat down to send back the words that would destroy everything he had learned to love. --This text refers to an out of print or unavailable edition of this title.