Letters to the Lantern! (HP/DC): A Letter to the Mystic!
https://archiveofourown.org/works/539020.../139764730
tealruby Wrote:After returning to her home dimension, Green Lantern replies to her superhero other self who resides on a Marvelous dimension. Our Hermione has much to discuss of the dimension she’d just left, home to another Hermione who’d been anything but a superhero.
https://archiveofourown.org/works/539020.../139764730