the Adze: why my grandma slapped me for letting a firefly into the house

Ewe people, from Togo side. Old folks here have serious wahala with fireflies and I never understood why as a child. Then my grandma explained the Adze. It's a vampire spirit that flies around as a firefly. Goes through keyholes, gaps under the door, cracks in the wall — that's why it takes the fir……