It's not Eyrie but if you look in the new fic recs, I just recced a SG-1/Avatar crossover. Toph on a Hatak. Toph in the SGC complex and encountering concrete "almost-sandstone". Or Toph and coffee.
D for Drakensis
You're only young once, but immaturity is forever.
D for Drakensis
You're only young once, but immaturity is forever.