Emotional wellness children's book series and accessories on a mission for kids and adults to have a healthier, more responsible and resilient relationship with their emotions Lil' Sass and the Adventure of Sadness, part of The Adventures of Lil' Sass children's emotional wellness book series and accessories, allows readers to join Lil' Sass as she discovers that it's OK to express sadness. In this book, Lil' Sass, a spunky and independent 10-year-old, is sad when her dad moves away. She struggles with understanding how to express what she's feeling. Mrs. Moo, a family friend, gives her advice on how to deal with her sadness, and Sass feels much better.