Abstract: Roma Tearne's debut novel Mosquito (2007) emerges as a poignant exploration of Sri Lanka's protracted ethnic conflict between the Sinhalese majority and the Tamil minority, framed within the broader canvas of the civil war (1983–2009). Through the intertwined stories of Theo Samarajeeva, a Sinhalese writer returning from exile, and Nulani Mendis, a young Tamil painter, Tearne dissects the war's insidious permeation into personal lives, landscapes, and psyches. This expanded analysis examines how ethnic conflict manifests as a spectral force, employing memory-mapping, eco-gothic motifs, and gendered trauma to critique the cycle of violence, displacement, and tentative healing. Drawing on postcolonial, ecofeminist, and memory studies theories, it argues that Tearne's narrative transforms the island's idyllic terrains into monstrous palimpsests of atrocity, where nature mirrors human divisiveness. By focalizing through characters ensnared in cross-ethnic romance and artistic expression, Mosquito challenges binary ethnic identities, advocating for empathy amid erasure. Scholarly analyses, including recent eco-gothic readings (e.g., 2024 ShodhKosh article) and memory praxis explorations (Phukan 2017), underscore the novel's role in diasporic witnessing. Ultimately, Tearne's work posits art as a redemptive cartography, mapping paths beyond conflict's ruins toward a hybrid future, while addressing ongoing post-2009 reconciliation failures.