For readers of Say Nothing and The Immortal Life of Henrietta Lacks, the epic, true story of the Abuelas de Plaza de Mayo, grandmothers who fought to find their stolen grandchildren during Argentina’s brutal dictatorship.

In the early hours of March 24th, 1976, the streets of Buenos Aires rumbled with tanks as soldiers seized the presidential palace, overthrowing Argentina’s leader. To many, it seemed like just another coup in a continent troubled by them, amid political violence and Cold War tensions. But there was something darker about this new regime. Quietly supported by the United States and much of Argentina itself, which was sick of constant bombings and gunfights, the junta quickly launched the “National Reorganization Process” or El Proceso—a bland name masking their ruthless campaign to crush the political left and instill the country with “Western, Christian” values. The dictatorship, which continued until 1983, decimated a generation.

One of the military’s most diabolical acts was the disappearance of hundreds of pregnant women. Patricia Roisinblit was among them, a mother and leftist revolutionary labeled “subversive” and abducted while eight months pregnant with her second child. Patricia gave birth in captivity, making one last call to her mother, Rosa, before vanishing. Her newborn son was also taken, one of hundreds given to police, military families, and dictatorship supporters, while their biological parents were secretly executed and their bodies disposed of. For Rosa and the other mothers in her same situation, the loss was unimaginable; their only solace was the hope that their grandchildren were still alive. United by this faith, a group of fierce grandmothers formed the Abuelas de Plaza de Mayo, dedicated to finding the stolen children and seeking justice from a nation that betrayed them.

A Flower Traveled in My Blood is Rosa and the Abuelas’ extraordinary story, told by a journalist with unique access. With authority and compassion, Haley Cohen Gilliland brings this tale to life, tracing the lives of Patricia, Rosa, and her stolen grandson, Guillermo. As the Abuelas transform into detectives, they confront military officers, sift through government documents, assume aliases to see suspected grandchildren, and even pioneer a groundbreaking genetics test with an American scientist.

A compelling mystery and deeply researched account of a pivotal era in world history, A Flower Traveled in My Blood takes readers on a journey of love, resilience, and redemption, revealing new truths about memory, identity, and family.