Summary: The condition of the railway lines in the tropical country of Eastern Bengal is described as antiquated, with drawbacks like bad food and inadequate rolling stock. The discomfort is highlighted by filthy carriages and poor ventilation, despite the glimpses of wildlife like monkeys and deer. Water transport is favored over rail due to the neglect of the rivers, which are natural communication channels. The Abor Field Force, clad in khaki, undertakes expeditions, with a focus on the Indian Military Police battalion. Encounters with tribal inhabitants, including intense discussions and disarmament rituals, shed light on the volatile situation. The tragic massacre of Mr. Noel Williamson and his party by Abor tribesmen is recounted through survivor accounts, adding to the quest for justice. Exploration of the Tsan-po River region, mapping efforts, and the challenging terrain present ongoing obstacles and mysteries. The complex political and strategic landscape in the Abor territory underscores the turbulent interactions between colonial forces and tribal communities.