"Dualism Głosu" is a philosophical thriller by the author Emil Sutro, which deeply immerses the reader in the world of internal contradictions and spiritual struggles. The book tells about two completely opposite sides of one hero - conscious and subconscious, reflecting the struggle between good and evil in his soul. Full of unexpected twists, mysterious intrigues and philosophical considerations, the book "Dualism of the Voice" leaves the reader in tense anticipation of how events will develop and which part of the hero will be stronger.