"Yeah, you're right. We should look at a history book to find out more. I think a good place to start is the book on solar history. Maybe it has something about solar anomalies."
She quickly scanned for the book, "The Solar Codex, this could be helpful."
Twilight flipped through the codex, quickly scanning each page. Something soon caught her eye, a picture of a glowing red sun. She translated it from Old Ponish:
Six-hundred-thirteen years after the Celestian epoch, the solar celestial body in the heavens revolted against us. The sun grew mad at Celestia's unending control over it, turning red and advancing in size. For weeks, the days gradually grew hotter, roasting all creatures below. On its thirty-third day of the assault, it had prematurely ended winter, melting ice and snow. On its forty-sixth day of expansion, it had grown brighter, redder, and entirely replaced the middle of winter with the peak of summer. It was not until the fifty-fifth day that the sun's anger was abated, retreating back into its original form. Winter was allowed to resume after it returned to a smaller, calm, yellow orb in the sky, obeying Celestia ever since.
"It's confirmed, it had been 500 years since the sun was last active like this." Twilight sounded disappointed, "This didn't really tell us anything useful."
"I can tell you something useful. We need to hurry, it is extraordinarily hot outside and rapidly getting hotter. We don't have much time," Starlight warned.
". . ."