Narrative Realms is an AR Story Engine for collaborative writers to catalyse ‘Creative Bounce’; a combination of interpersonal synchrony and creative flow. Immersing writers in a story of their own creation as they write within a tactile and collaborative storytelling platform, and augmenting the creative writing experience. Extensive ethnographic research with writers and storytellers has led to the creation of an AR application built for the HoloLens 2 to foster synchronous flow, featuring an intuitive and tactile writing environment grounded in established writing frameworks.