Rick Hayden and Laura Fanning of Panacea return in this next thriller by F. Paul Wilson and come across another impossible medical scenario—the gene that makes us human. Or does it?

Rick’s brother, Keith, a prominent zoologist at NYU, suddenly liquidates his assets and walks out of his job never to be seen again.

The only clues they have are his brother’s book, which mentions “the God Gene”—a gene found only in primates that spontaneously appears in the evolutionary record and controls brain development—and the mysterious death of odd, blue-eyed primate brought back from East Africa.

Rick and Laura’s search takes them to an uncharted island off the coast of Mozambique and the edge of evolutionary science.