Adroanzi

The Lugbara live in the Democratic Republic of the Congo and Uganda. In Lugbara mythology, Adroa appeared in both good and evil aspects; he was the creator god and appeared on Earth as a human who was near death. He was depicted as a very tall and white man with only one half of a body, missing one eye, one leg, etc. His children were called the Adroanzi.
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[African] The children of Adroa who frequented streams, large trees and rocks. They were fond of following people at night. Provided the person followed did not look back, they would be safe. But if they glanced over their shoulder, the Adroanzi would kill them.