Biograpghy On Lois Duncan - Author of “I Know What You Did Last Summer” Lois Duncan grew up in Sarasota, Florida, and from since a child, she knew she wanted to be a writer. She submitted her first story to a magazine at the age of 10 and made her first sale at 13. Throughout her high-school years, she wrote as a regular author for young people's publications, particularly the well known Seventeen Magazine. Duncan is best known for her suspenseful novels. She was drawn to this type of writing because those were the books she enjoyed most reading. Of her writing techni