Amitav Ghosh’s Gun Island reinterprets the traditional legend of Manasa Devi, the snake goddess of South Asian folklore, to address urgent ecological concerns and the interconnected crises of climate change, migration, and cultural displacement. By reimagining the myth of Manasa Devi within a contemporary global narrative, Ghosh transforms folklore into a powerful medium of environmental education and socio-cultural liberation. The novel bridges myth and modernity, demonstrating how indigenous ecological wisdom embedded in traditional narratives offers alternative ways of understanding humanity’s relationship with nature. Through the protagonist’s journey across India, Bangladesh, and Europe, the text reveals how environmental disasters disrupt human lives, forcing migrations that mirror the ancient movements encoded in mythic memory. The legend of Manasa Devi functions not merely as a religious or cultural artifact but as an ecological metaphor that foregrounds the agency of non-human forces and challenges anthropocentric worldviews. Ghosh employs magical realism and intertextual storytelling to show that myths possess pedagogical potential, educating readers about ecological balance, environmental justice, and ethical coexistence with the natural world. The novel reframes environmental catastrophe as both a material and spiritual crisis, suggesting that liberation lies in rediscovering interconnectedness among humans, animals, landscapes, and belief systems. As literature becomes a space for ecological consciousness, Gun Island operates as an instrument of environmental humanities, promoting awareness, empathy, and responsibility toward planetary survival. The reimagined Manasa Devi legend symbolizes resistance against ecological exploitation and colonial modes of knowledge that separate culture from nature. Ultimately, the novel proposes that storytelling itself can act as environmental education—awakening ecological sensitivity while enabling intellectual and spiritual liberation in the age of climate crisis.