In a usually dry area homes were built into a hillside on thick layers of clay and dirt. late one summer a long drought was followed by heavy rain.what kind of mass movement might the area experience?

The area might experience a mass movement such as a landslide or mudslide due to the combination of the drought followed by heavy rain. The clay and dirt would become saturated and unstable, leading to a potential collapse of the hillside and homes built into it.