In the seriesEdit
Näcken are huge, foul-smelling water dwellers, capable of assuming the shape of a horse. One of them, after losing a bet with Anastasia Luccio, is bound to assist her in the chase of a warlock named Alexander Page.
Näcken is the swedish name for water spirits, invariably male, who often entice women and children to drown in lakes or streams by playing the violin. Similar faerie are present in North Europe, from Germany to Scandinavia and the UK.[Footnote 1]