Released in 1994, her second novel, "In the Time of the Butterflies", has a historical premise and elaborates on the death of the Mirabal sisters during the time of the Trujillo dictatorship in the Dominican Republic. In 1960 their bodies were found at the bottom of a cliff on the north coast of the island, and it is said they were a part of a revolutionary movement to overthrow the oppressive regime of the country at the time. These legendary figures are referred to as "Las Mariposas", or "The Butterflies". This story portrays women as strong characters who have the power to alter the course of history, demonstrating Alvarez's affinity for strong female protagonists and anti-colonial movements. As Alvarez explains, "I hope that through this fictionalized story I will bring acquaintance of these famous sisters to English speaking readers. November 25, the day of their murders is observed in many Latin American countries as the International Day Against Violence Toward Women. Obviously, these sisters, who fought one tyrant, have served as models for women fighting against injustices of all kinds."