Nixie

Water spirits named collectively as the Nixie, and individually as Nix. The merfolk dwell in all bodies of water, the open sea and ocean's deep, wetlands and water gardens. The nixie can be found in natural pools, fish ponds, springs, fountains and lakes. Hidden among the bullrushes, milkweeds, sedges, reeds, cattails and lilies and adorn with flowers of the marsh marigolds and yellow iris. They're hiding under the bubbling waters of streams, fast moving rivers, rivulets, puddles and waterfalls. Nixie are even inside murky waters of swamps, in the peat bogs and marshes where treasures and gruesome things are buried. In waters clear, salty and brackish, muddy and dirty, all manner of wetlands have an abundance of spirits attached with them. 

Some of the well known nixie are the water nymphs (or Naiads) from Greek mythology. These are beautiful female water spirits although there are male versions too, such as the fathers of the nymphs. The Undine are elemental female water spirits with enchanting voices. They desire to become mortal women, to progress their souls further to the next level. Experiencing love and marriage can enhance them in the next life to immortality. 

The Gwragedd Annwn are beautiful female water fairies who are also called Lake Maidens and Wives of the Lower World. They live in rivers and lakes and fall in love with mortal men. St Patrick visited Wales and was then insulted by people, so he transformed them into fish but the women turned into fairies. It seemed this was one such origin story of the Gwragedd Annwn, who might be responsible for the magical breed of cattle named Welsh Black, and the phenomena of sun only shining once a year on dark lakes including Llyn Barfog. The Lady of the Lake from Arthurian legend might even be one of the mystical Gwragedd Annwn. 

Less than friendly are the malicious water spirits. Jenny Greenteeth is a vicious nix that pulls people into the water if they get too close to the river's edge, and drowns them. Peg Powler is a water hag with a hunger for human flesh, preying on children playing near the river. Shellycoat is a water bogeyman who laughs at those unfortunate victims who are drowning. Grindylow is a small water demon that frightens children and threatens to drown them. Its name is linked to Grendel of the Beowulf legend. Kelpie is an extremely dangerous aquatic black horse that shapeshifts into human form. The Rusalki are unfriendly female water spirits. There are many thousands of Nixie, good and bad.  

Storm Valkyrie