The Knight is perfectly capable of waiting.

Still. They don't want to wait for her. They can offer some information, starting as straightforwardly as possible.

She was a large being. Her smaller horns were longer than my body. currently is.
She first appeared in the dream's sky as the sun itself. She took my challenging her personally rather than staying away, where it was safer.
Fitting to her name, most of her attacks burned gold and streaked like sunbeams. She summoned blades but seemed comparatively unskilled with them.
The core of her, within the shadows around her eyes, appeared to be a glowing orb.