"We should keep reading to learn how to deal with this best. Oh, I know; A book on solar history! Maybe it has something about solar anomalies that could help"
Starlight scanned the library, and thanks yet again to Twilight's organization, she found the desired book quickly and opened it immediately, "The Solar Codex, here we go."
She 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.
"This same event was documented 500 years ago. That lines up with the time limit the Spherical spell has. We must be on the right track."
"The sun seems to be expanding much faster than it did in the past. Reaching what it is now in a few hours compared to the weeks it took before."
"We don't have much time . . ."