An old Jamaican woman telling a story to one or two naughty boys. It's about a duppy

Charlie Nancy is a young man who is used to being embarrassed by his estranged father. But when his father dies, Charlie discovers that his father was Anansi: trickster god of stories. And he learns that he has a brother. Now his brother, Spider, is entering Charlie’s life, determined to make it more interesting but making it a lot more dangerous.