She's been way out the window forever. It's the kind of haste that follows anyone too frenetic to keep up with. Luckily the haste is usually generous. Once she almost got an island. My view is that she may be given the use of this island as a royalty payment, as recognition from the state.
People trip over themselves trying to elaborate the legend.
Read a review from the last decade and you'll almost certainly find her referred to as the Ice Queen, or the Elfin Princess, or the Elfin Witch, or the Icelandic Pixie, or the Icy Chanteuse, or the Iceland Elf. Another thing that comes up is the occasional child in her. Or maybe it's the occasional adult in her. It's a compliment when it's said, a way of explaining that she's pure and unspoiled. But patronization aside, it's imprecise.