Here is a draft proposal based on the information provided:
Working Title: Duncan Gets Spooked
Audience:
The target audience for this project is children aged 3-6 years old. This age group enjoys stories that feature characters they are familiar with from television shows or books. Thomas and Friends is a popular preschool television series that teaches valuable lessons through entertaining adventures of locomotives and trains. The characters, like Duncan, are recognizable to children in this age range. The story content will appeal to their developing imagination and curiosity about the supernatural or "spooky" elements of ghost stories. While young, they are beginning to understand concepts like fear and humor. Presenting a classic "getting scared but it's not really scary"