A slow, careful reread is in order: “People have wondered what happens to the hybrid children whose genes the Zeta Reticulans have fashioned from theirs and mixed with a few human genes. Raechel's Eyes gives the answer. They grow up, and in the case of teenager ‘Raechel,’ help crew star craft, including one who crash-landed on the Nevada desert in 1956.” Quote from Raechel’s Eyes