An Archive of Our Own, a project of the Organization for Transformative Works
Fic rec! 6K Trollhunters and Rise of the Guardians’s crossover.
Summary: When Merlin does a magical summon to bum a favor off of the Tooth Fairy, it doesn't go the way he expected because Tooth and her fellow Guardians have something to say about the constant imperilment of a certain teenage Trollhunter. Merlin is going to learn about a completely new concept: child endangerment laws.
Comments: There’s so much to love here, I’m not sure where to start. Tooth is in her element here, a literal queen who’s out to slay Merlin for his recklessness in choosing a child. Merlin gets shot down so many times, in a way he really, really deserves. And Jim gets some, relutant, help out of it all.