About Marie Prins Marie Prins is an award-winning author of middle-grade fiction including The Girl from the Attic. She lives in a historic house in Northumberland County, Ontario. This is her debut picture book. Books by Marie Prins Who's Walking Dawg? by (author) Marie Prins illustrated by Leanne Franson Ages 5 to 8 Grades k to 3 The Girl from the Attic by (author) Marie Prins Ages 9 to 12 Grades 5 to 7