This paper is a socio-literary approach to the book «TUA» COLECTÂ NEA LITERÁRIA: Memórias do Vale e da Linha Férrea, a collection of literary texts on the Tua centenarian railway, like the Swiss or French Alps railways, highlighting the analysis of the short story -The Tua Line drama‖ which builds a fictional dialogue between objects of a technological museum about the past and the future of the Tua railway, which is now disabled. It aims to focus on and discuss relations between technology and literature within its contemporary social context and to understand their complex and dynamic interrelations of interest regarding musealization. This paper will discuss the source base, methods and theory. The source base consists of literary publications appearing throughout the twentieth century. These texts, with originate from various authors, both classic and anonymous (novels, poetry, short stories, popular literature, news columns), illustrate the action of/in the history of individuals and populations in relation to the Tua Valley, River, line and train, over the course of more than 100 years. Narratives, characters, events and episodes in various timeframes make up the set of literary fictions that provide an approximate and sensitive vision of the Tua Valley and realities around the construction, operation and closing of the railway line. Memories, identities, and historical contexts where norms, customs and social representations operate under various logics or social worlds which illustrate, by means of the fictional production of an imaginary realism, the socio-historical meaning of the Tua Valley and line. The methods employed are a longitudinal qualitative analysis of the occurrence of these themes during this period, and a socio-historical content analysis, drawing from literary studies, which aims to identify the main patterns of fictional narrative, in which sociotechnical knowledge regarding railways was packaged. The interdisciplinary analysis which is made is developed in the socio-historical framework (M. Block), the -sociology of action‖ (Thévenot & Boltanski), the theory of social representations (Durkheim) and literature theory (Todorov) and aims to open other avenues of academic research on this topic.