The Exorcism of Nicola Aubry is an 1877 account written by the Redemptorist Rev. Michael M ller, originally titled Triumph of the Blessed Sacrament. It recounts the dramatic story of Nicola Aubry, a young woman possessed by demons and miraculously delivered through the power of the Eucharist. This 19th-century Catholic classic affirms faith in Christ's Real Presence and the triumph of sacramental grace over evil.