The Bowels of Liberty (Portuguese: Os Subterrâneos da Liberdade) is a trilogy of Brazilian Modernist novels written by Jorge Amado in 1954.

The trilogy comprises Bitter Times (Os ásperos tempos), Agony of Night (Agonia da noite) and Light at the End of the Tunnel (A luz no túnel).

Written around fifteen years after the fictional events described, the novel sets out to teach Brazilian history and emphasise the role of resistance movements.

Agony of Night describes the crimes of the Novo Estado regime and the resistance of the Brazilian Communist Party, against the backdrop of the Second World War.

Amado describes São Paulo police atrocities and characters from the other books in the trilogy re-appear, such as the banker Costa Vale and an American businessman.