The Half Sister written by Sandie Jones is based on the fact that people can find each other based on a DNA match kit. This story focuses around Jess taking such a test. She matched with Lauren, her half sister, and assumed Lauren and Kate's father was her father as well. Written in third person narrations, alternating between Kate's and Lauren's perspectives. This seems to be a twisted family drama, set up as a domestic suspense novel. I wonder just how safe and accurate are the DNA match kits and websites.