Sister Lisa Grey loved her work on the Infectious Diseases Unit, but she knew there was something missing in her life. She had been the linchpin of her family after her mother's death, but when she met Dr Alex Scott and his two small children, Holly and Jack, she realised she badly wanted to share in his family too. The children were willing, so was their grandmother who cared for them, and so was Lisa -but what about Alex? Three caring sisters in need of a loving family