This story is a sequel to How To Raise A Kirin In 12,371 Steps
Kunzite was the daughter of Twilight and Spike. An Equestrian Kirin, carrying the traits of her parents in a form rumored to never exist. Moonstone was the son of the Dragon Lord Ember. Just as tough as any dragon, but something unseen set him apart. They seemed to be as different as they could, but like their generation before them, they would still find common ground. Namely, the feeling that they would need to work together to stop a threat in the future.
As it turned out, Autumn Blaze has been hard at work uniting all the kirin tribes over the years. It's gone rather well, except she's had difficulty finding where two of the tribes have gone. When a stray kirin comes out of hiding and claims she ran away from the lost tribes, Kunzite thinks that might be worth investigating. Roping Moonstone into it, the three of them set out to find what happened to the kirin village, not sure what they'll find...
Part 3 of the My Little Kirin saga, set 21 years after Shadow Play. Reading the first two parts is not required, and you can read the Recap if you want to start here, or just need a refresher. Part 1, Spike Finds Love At Last, can be found here. Part 2, How To Raise A Kirin in 12,371 Steps, can be found here.
Edited with the help of Salnalus.