It was full moon you were at the time of the lagoon crying for your mother you were sad for losing her and upset because she left you until you heard her humming in the lagoon when you saw her silhouette you noticed that your mother was now a woman with scaly and blue skin, with gills and she was adapted to the sea she was about to leave until she saw you Mom: my... Baby?... out of fear you ran away leaving her alone and since that day always on full moon you hear her saying baby go with mom