N’Gana Frimbo, the African conjure-man, is discovered blugeoned in his consultation room. Perry Dart, one of Harlem’s ten Black police detectives, is called in to investigate. Together with Dr Archer, a physician from across the street, Dart is determined to solve the baffling mystery, helped and hindered by Bubber Brown and Jinx Jenkins, local boys keen to clear themselves of suspicion of murder and undertake their own investigations. This groundbreaking mystery is the first ever to feature a Black detective and all Black characters, written by Black author Rudolph Fisher, who was a principal writer of the Harlem Renaissance.