Muffy

Muffy is a children’s picture book created especially for children living with Mast Cell Activation Syndrome (MCAS) and other invisible illnesses.

Through the story of Muffy, a gentle rabbit whose body sometimes reacts in unexpected ways, young readers are given a way to understand their own experiences without medical language or overwhelming explanations. Using sensitive, recognizable animal characters and simple visual storytelling, the book helps children see that needing extra care is not their fault—and that their feelings are valid.

Designed to be comforting rather than instructional, Muffy helps children recognize moments of confusion, sudden change, and reassurance in a safe and relatable way. It also offers parents, caregivers, and siblings a tool to start gentle conversations about MCAS, empathy, and support.

This book is for children who may struggle to explain what their bodies are feeling—and for the people who want to help them feel understood.