Ethno-Religious crises have been a major security challenge in Northern Nigeria, and this has brought untold hardships that traumatized people and left them in terrible states. E.E. Sule, drawing from the historical events of 1991 Kano crises in Kano State, creates a world of fiction that brings to the fore the impact of the crises on the people. This essay therefore interrogates ethno-religious crises in E.E. Sule’s Sterile Sky, the traumatic impact of tribal war on the people and the resilient spirit put up by these characters to overcome their traumatic experiences. The postcolonial theory, which studies works of literature written after the Nigeria colonial system, and the trauma theory of literature which points at the impact of past experiences on characters after incidents and how it shapes their existence form the foundation for the study. It adopts the qualitative approach of literary investigation, leveraging on the data drawn from the novel understudy. This paper reveals that the crises were caused by lack of misunderstanding between Christians and Muslims in Northern Nigeria and deep hatred for the non-Hausa Fulani tribes (and this later escalated into attacks, killings and the loss of lives and total displacement of families). These crises plunged families and individuals into trauma which made them discover resilient ways to surmount their predicaments.