The Berberoka were a dangerous race of fairies that lived in swamps and rivers of the Philippines and preyed primarily on the fishermen who frequented these bodies of water. They caught their victims with a simple yet effective trap—the Berberoka ingested all the water in a specific area which made all the fish visible. This naturally attracted the attention of the unsuspecting fishermen, who would rush off to that area. As soon as their victims reached the spot, the Berberoka spewed out the ingested water and capsized their boats. They then dragged the hapless fishermen underwater where they ate them in unceremonious fashion.