HOTLINE FROM TOMORROWWhenMurdoch was summoned to his grandfather's isolated Scottish castle; hehad no idea of the old man's latest discovery--nor where it would leadhim. Sir Charles, a genius in far-out physics, had found a flaw in thelaw of conservation of energy; in any process an incredibly tinyincrement of energy escaped--back through time! Using this "tau"radiation, he could send messages into the past.But Murdochdiscovered records of messages he knew he had never sent! Were manyfutures possible? Could a message from Future X alter the past--and thuswipe out Future X? But who would be foolish enough to send a messagethat could eliminate his own existence?Then disaster struck. Anadvanced fusion reactor threatened to destroy all Earth. Grimly, Murdochsat down to send back the words that would destroy everything he hadlearned to love.