Authored by E. M. Saunders, The Whitman Massacre provides a dramatic narrative account of the tragic 1847 attack on the Cayuse Indian mission at Waiilatpu by members of the Cayuse tribe, resulting in the deaths of Marcus and Narcissa Whitman and twelve others. The book explores the mounting racial tensions, cultural misunderstandings, and devastating epidemics—particularly measles—that fueled Indigenous resentment against encroaching American settlers. Drawing on historical documents and period accounts, the text examines how the missionary enterprise inadvertently triggered a catastrophic clash of worlds in southeastern Washington. A keen insight drawn from the work is how medical disparities served as the ultimate catalyst for frontier violence; because traditional Cayuse healing practices failed against introduced European diseases while white missionaries survived, the tribe perceived the plague as targeted biological warfare, turning a public health disaster into a fatal geopolitical flashpoint.