Silly Green Mask had been sitting in a file cabinet for 40 years. It was recently found when its author, now a grandma, decided to recycle decades of papers from her files. Folded away were the yellow, tattered pages of a true story she'd written when she was a young single mother. She had once dreamed of making it into a children's story book. But life got in the way and the dream was forgotten. Upon finding the story, a little bird tweeted, "It's never too late to make your forgotten dream come true." Having no clue how to start, she began visualizing her dream until it came to be.

Silly Green Mask is about a very imaginative 3-year-old girl and her younger sister. At pre-school, the girl draws a silly face on green construction paper. Her teacher cuts it out, fashions it into a mask with eye holes, and attaches a string. The mask becomes a source of fun and theater for the girl, instantly turning her into an animated, make-believe character. One day, while wearing the mask, the girl becomes so wild that her little sister starts to cry. In an act of compassion, she makes a surprising decision.

Silly Green Mask is about love, family, innocence, imagination and the importance of choice.

Including in the book are the lyrics and music to four Japanese children's songs and a cut-out mask.