Shades of Black

Carol has written a book about one of her previous adventures. She has put a lot of work into it, but after receiving rejections from several publishers, her enthusiasm for the project is beginning to wane. 
Her hope is somewhat rekindled when a publisher who recently rejected her book sends her an SMS, telling Carol that he wants to meet her. 
However, the publisher is not interested in Carol’s writing skills, but in her aptitude for locating missing persons. He wants to hire her to find a missing eccentric author.