Three days ago, the moon eclipsed the sun at midday before setting soon after. Three days ago, a series of explosions rocked the Castle of the Two Sisters and the surrounding village. Three days ago, Princess Luna disappeared without a trace.

Ever since then, the sun has remained fixed in the sky, and all of Equestria has already begun to wither in the resulting heat wave. Princess Celestia refuses to leave her chambers, and the only one who could reliably bring her forth, her sister, is nowhere to be found.

What will it take to bring Celestia back to reason and stability back to Equestria?

Thanks to JeffCvt and Alphacat for editing!