This article discusses the case of revitalization of the Wymysorys language, spoken in Wilamowice, Poland, where literacy not only plays a role in education-oriented proficiency development, but also where literature is utilized in the learning process and adapted for the purpose of theatrical performances. The authors argue that engagement in these literature-based theatrical activities promotes and expedites language entrenchment that usually develops gradually in ‘normal’ conversational contexts, which are usually lacking in cases of severe language endangerment. The paper addresses the theoretical and practical disparity regarding the role of literature in RLS activities (Fishman 1991), which emphasizes spoken language and ‘natural’ intergenerational language transmission.