If we're allowed to ask about Sydrathna, could you tell us a bit more about the reproduction of Unseelie fae?
What exactly does human corpse recycling entail? Do the fae just kind of inhabit the body, like a hermit crab would take a snail's shell, or do they just revive the deceased as a fae? If it's the former, how do the different residents react to this information, knowing their corpses could be harvested? If its the latter, how do the dead tend to feel about this?
And also, are these fae picky about what cadavers they use? Will they use victims of war, or is it only peaceful deaths? And do they have any preferences for those that died from a certain cause over other causes? Do diseases have any significance, or are they just disregarded due to the fantasy aspect of the setting?
And lastly, what about Lane? If he has a gravestone he uses as a respawn point, have his deaths ever at least piqued the interest of the Unseelie fae?
Sorry for the multitude of questions, your worldbuilding is just so cool and I really wish to learn more!