[Michlib-l] Do you know this book?

Hi, I have a patron in search of a fiction book about a french woman (maybe named Solel) who is part of a sleep study that her ex-boyfriend is over seeing. In her dreams she looks for a young girl (maybe named Arnette) who has a brain injury and is in trouble. The book is from the late 80's or early 90's. Does anyone know the title of this book? Thank you for your help! -- Rachael Birgy, Youth Services Director Kalkaska County Library 247 S. Cedar St., Kalkaska, MI 231-258-9411