This article represents a brief analysis of the detention memoirs of Alexei Marinat, which reveal the fictional and the authentic side of the auctorial self, along with its expression in the language presented to the readers. The memoirs offer a rich perspective of analysis on life in captivity, of the author‟s intimate reflections in relation to the process of rediscovery and redefinition of the self, transformed after imprisonment. This study also attempts to demonstrate that the diarist‟s con-fessions constitute unique human testimonies, offering authenticity to the terrifying historical events.