A trader returning from the interior witnesses a juju ceremony on a nearby plantation where the owner tolerates native rites and a young woman is seized; what begins as local superstition soon escalates into a string of mysterious incidents and violent outcomes. The narrator and his acquaintances confront eerie signs—a creeping form, a vengeful presence, a first victim, and even a gorilla's scream—while gradually unmasking human motives behind apparent supernatural forces. The narrative moves from atmospheric ritual and fear to investigation, probing the tensions between belief, exploitation, and pragmatic explanations for seemingly occult events.