The movement of tin frontiers across the globe both shapes and tells the tale of key vectors of capitalist imperialism across the world-system: expropriation, industrialization, decolonization. This chapter takes as its organizing principle the idea of the ‘mystery’ of the commodity and the ‘curse’ of tin. The literary and cinematic narratives examined reveal the capacity of tin texts to shape understandings of the socio-economic, gendered and racial inequalities in both peripheral and core territories. Whether in realist or irrealist representation, the mystery of the commodity of tin is frequently mobilized as plot hook, organising metaphor or structural principle. Whether in the tales of the tío or the memoirs of Cornish miners, in the realist films of Bolivia’s Ukamau group or Hammer’s schlock-visions of extraction in the British South West, we find instructive accounts of land expropriation, leeching of natural resources, ecologies of exhaustion and the broken bodies of the global working class.