Before they've fully adjusted to the darkness, and are aware via anything but the feel of earth under their hooves that the path has sloped downward a little, it has given way under them, some of the flora and some distressingly large rocks along with it. Clarity can't even teleport. It's too dark to see where she might be going.
"It seems like it. So unless I have the hitherto undiscovered power to control ancient artifacts by making suggestions to them we are at least reasonably suitable bearers for the Elements of Harmony, huh?"
From the sun descends - Princess Celestia.
"Princess Celestia!" exclaims Clarity, also bowing quickly before trotting forward. "You're okay!"
"I told you," winks Celestia, "to make some friends! I saw the signs of Nightmare Moon's return, and I knew that you had the magic inside you to defeat her - but there was no way you could have unleashed it without letting true friendship into your heart." She sighs. "Now. If only another will as well. Princess Luna."
"It has been a thousand years since I've seen you like this, sister. It's time to put our differences behind us. We ought to be ruling together."
Celestia rests her neck against her sister's. "I've missed you, too. It's so good to have you back."
Cordy sits up to watch the sisters' reunion; apparently she doesn't feel quite up to standing just yet.
Clarity notices she has a headache, heals it, and says, "Does anypony else's head kind of hurt?"
"Princess Celestia," she asks when she's done, "any chance we could all get a teleport back to Ponyville instead of walking through the forest again?"