UL R S ET
As a boy, killed a dog and replaced it
His uncle, the king for "but one year"
Hold his storyteller's daughter, whose appearance made her miserable
Charlotte was an underachiever
A key musician from destiny's forge
the practical guide who found her, twice-named with but one name
the wormy remains of the sphere, broken with her death
Lose the M, then stop walking. Hold what remains. (Yes. It's cheating.)
Now where might this lady be found?
Well, it's been a day. First clue:
All sources are at least alluded to, save for the last two, and the penultimate should be obvious if you've done your prep work. That's not to say that I made it easy for you... unless you're looking in the right places.
And now long enough for another clue:
Charlotte was an author of sorts. If she'd set out to write fiction, what manner of fiction would she write?
...and time for another clue, I suppose.
Of the second set... the first could be found on the royal road. The second was trained by Mozart's taller, greener self. The third spent time in the slaughterhouse. The fourth? That would make it far too easy.
Another clue comes.
The musician found housing by the Bai. The guide was a Villain learning to do wrong right. The sphere weighed no more than a gramme... and Charlotte, as always, put her words on the web.
...and, I suppose, another, laying out the structure a bit more blatantly
format clarification: the first set is all from a single source (indicated by its header clue). The second set are all from different sources, but each source other than the cheater is of the same type of work, implied by the second header. Each line of the second contains a reference to a single persona and a reference to the work they're from. Pronouns refer to the preceding line. You're going to need the holds for the last question.