Also, Letters to the Lantern! (HP/DC) Chapter 78: Not All Lights Want to Glow.
https://archiveofourown.org/works/539020.../152188660
tealruby Wrote:A certain doctor in Japan isn’t at all happy to gain luminary superpowers, so she turns to a superhero familiar with brightness (in both senses of the word) for aid. Particularly, in finding the off switch.
Notes:
This is the letter Hermione gets at the end of First Expansions from First Times, but reading that chapter before the following isn’t necessary.
https://archiveofourown.org/works/539020.../152188660