Super Short Summary

In Mercies in Disguise, Gina Kolata explores the Baxley family's struggle with a hereditary and lethal neurological disease, combining symptoms of Parkinson’s and Alzheimer’s. As family members confront genetic testing, they must decide whether to pursue preventive measures, knowing that children have a 50 percent chance of inheriting the condition. Through Amanda Baxley's journey, the narrative highlights the emotional and ethical dilemmas of living with and potentially passing on such a debilitating illness.