Listen, y’all, I am weak and every piece of media I consume is up to be au-ified.
If you haven’t watched Trollhunters (I don’t blame you, I only did because I’m still off of work for injury) anything beyond the basic set up will be after a cut.
So, Trollhunters is the story of this kid, Jim Lake, Jr
The thing he’s holding in his hand is the amulet of Merlin, which chose him to be the new Trollhunter after the previous one died. It gives him that armor and sword and does some really cool shit.
The mission of the Trollhunter? To protect the good trolls from the bad ones and keep the humans from learning about trolls and keep this one troll who is, like, the bad of bads, the king of the bad trolls locked up.
Jim is the first human Trollhunter.
In the au, Lucy is Jim.
Lucy finds the amulet on the way to school one day with best friend, Maggie.
They’re both sort of on the outskirts of the school. Lucy only moved to Midvale that year, when her father got stationed to a nearby base. Maggie moved there the year before to live with her aunt. Their houses are maybe a block apart, and both spent much of Lucy’s first summer there in the library. By the time school started, they were best friends and it was ‘too late’ for the other kids to ‘warn’ Lucy about what they had learned about Maggie through Facebook stalking.
(not that Lucy didn’t know, they both came out to each other that summer)
So, Lucy finds the amulet on the way to school. Or, well, it calls out to her and she stops to investigate, to Maggie’s annoyance. Lucy puts it in her bag and the two finally get to school (late)
At school, Alex is one of the more popular girls. The teachers all love her. She seems to have a solid group of friends, and is a leader on the debate team. She doesn’t seem to even know who Maggie and Lucy are, but, impressed with Lucy during a classroom debate, invites her to join.
Lucy can’t help but say yes.
(Lucy and Maggie both have a crush on her and they both tease each other for their crush on her)
(Alex, of course, has a crush on them as well, but doesn’t know what to do about it)
After school that day, Lucy is approached by two trolls, J’onn and M’gann, and taken to Hearthstone Trollmarket.
Question of Smoke 