Fairy Tale Novel Notes

Just something I found in reading that tantalizied me. Not sure how to work it into this story.

The Scandinavian and Germanic peoples also believed in the huldre or hidden folk, also called the Elves. Their domain was a luminous cavern-realm called Alfheim. From Alfheim they would venture forth to cajole, abduct, or seduce human beings. Other beings were the kobolds, or mine-dwarves, perhaps a variant of the Norse Svartalf. Another type was the Tusse, a variant of elf which lived close to humans, usually beneath a farmstead, or close to one. The primary interest of the huldre/elf-folk, which could be said to include all of the Germanic types, seems to have been procreation with human beings for purposes of maintaining genetic diversity. Like the trolls and dwarves, the elves seemed to dislike bright sunlight, but may have had more tolerance than their troll and dwarf cousins, as they were sometimes seen at dawn, twilight, or dusk, or by day in deeply-shadowed valleys or mountain chasms. Huldre/elves in particular were said to dwell beneath mounds and hills which were in closer proximity to human habitations, as trolls did more rarely. The elves took a regular interest in human affairs-weddings, births, and deaths, (bloodlines?) the success of crops and livestock, and so forth--but only for their own selfish interests. They seemed to be overly-concerned with genetic and biological diversity, and they pilfered livestock, crops, and human genes via theft or cross-species liaison whenever they saw fit to do so. The elves are generally depicted as extremely fair-haired and fair-skinned. -- The Deep Dwellers