This paper departs from the dominant trend that presents the Colombian writer Tomas Gonzalez as a novelist, to highlight his poetic work. The series Manglares, which consists so far by three different editions of the same book of poems, is analyzed as an unstable text that, at times, nourishes the narrative corpus. The analysis focuses on how this poetry collection puts into question the memory conceived as a consolidated and solid personal archive. By contrast, the memory displayed in Manglares is permanently reconfigured and constitutes therefore the basis of an unsteady self which is constantly updated.