Disturbing but gripping

Talissa is a young American academic who becomes a surrogate mother to raise funds for her studies in paleontology. She works through an unethical and corrupt agency who, instead of using the adoptive dad's sperm, uses something derived from a recent Neanderthal find. I found the story of her pregnancy very disturbing. The child is born and grows up in a loving family where he he develops a close affinity with the natural world. But ultimately the truth comes out and he and Talissa are targeted by the surrogacy agency who are desperate to conceal their crime. It is a sometimes scary, gripping but always thought provoking read.