Susan Riehle, author
Hidden Grandma is a preschool to Grade 2 book (ages 4-8). It's very rich in pictures, with little text. The story is that a grandmother misses her grandkids so much that she hatches a crazy plan to hide in their house. Of course, the kids suspect and go searching for her. She hides in more and more improbable places. Children like to turn the pages and try and find her.