Whistle, a story centered around a 10-year-old girl named Kennedy, who has autism. Kennedy finds solace in the melodic whistle of her mother's voice, which becomes a central theme of her life. For her birthday, her mother gifts her a unique magical pink whistle that captures this comforting sound. The narrative chronicles the family's preparations and Kennedy's excitement for her upcoming birthday party, while also addressing the complexities of having an invisible disability. Through a format reminiscent of a 3D animated film script, Whistle explores Kennedy's challenges since her diagnosis, her journey of personal growth, and the adventurous quest to retrieve the lost whistle, detailing heartfelt moments and developmental progress throughout the storyline.