Lulu must navigate the challenges of returning to school without her beloved comfort plushie, Mr. Barky. Lulu, a child with developmental delays due to autism and hearing problems, faces the daunting prospect of attending school after the summer holidays. Her teacher's decision to disallow her support plushie, Mr. Barky, leaves her distressed, as she relies on him to manage the classroom's noise and feel calm. The narrative likely follows Lulu's attempts to cope with the sensory overload and social anxieties of the school environment, exploring her internal struggles and her interactions with peers and educators.

The book is presented as a narrative aimed at raising awareness for disabled children, particularly those with autism and hearing impairments. The author's personal experience as a disabled individual and advocate suggests a sensitive and authentic portrayal of Lulu's challenges. The story's focus on a child's emotional regulation and adaptation to school environments points to its potential use in fostering empathy and understanding among young readers and their families. The premise sets up a story that likely emphasizes themes of inclusion, support, and the importance of individual needs in educational settings.