Celestia was Princess of the Day. Light came to her most readily. Her sister could have matched her spell with one of the Night, and it would have been as effective as her own.

Celestia dropped to her knees close by Emizel, the better to not loom over him and intimidate him any more than necessary. She had no intention of scolding, but she did think this situation needed to be treated seriously. "Please tell me what this was all about."