The agents encounter two girls who look identical and whose individual fathers were murdered in similar, odd circumstances at the same moment over 3,000 miles apart.
- From the book jacket
- Nature or Nurture?
- Two identical murders, one on the East coast and one on the West. Two identical little girls, who may or may not be involved. Are these mirror-murders just a bizarre coincidence? FBI Agents Mulder and Scully don't think so. And when their investigation leads them to a DNA-splicing doctor who's been tinkering with the gene pool, they're faced with some terrifying questions. Why were these little girls created? Are they the product of a genetic experiment gone awry? Agents Mulder and Scully need to find out, before the next crop of killers is born...
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