"A new disease is decimating the large mammal population and is poised to infect humans. Its resemblance to a typhus from the last ice age is troubling, and so two scientists are sent back to get blood samples from the megafauna of the time, including the sabre tooth tiger. Upon arrival, one scientist is killed and the other calls for help - but her rescuers are part of a cabal that created the disease and now wants to cash in on it - only she knows, and so she must die. From the futuristic cities on Earth and Mars to the wilds of the Paleolithic era, Robin must find a way to stay alive and return to her time with the antibodies that will save the lives of millions."--Provided by publisher.
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