Every day Grenta would ask her magic mirror a question, the same question every time. She would say,
Mirror mirror on the wall
Tell me now or you shall fall,
Whose feathers fairest of them all.
And always her mirror would answer her,
You my queen it must be you
Though your feathers are not true
But as Bright Shimmer grew older she also grew more beautiful until the fateful day when the mirrors answer changed, for Grenta was no longer the fairest and the mirror had to tell the truth. On that day, the mirror answered not "you" but "her".
When the queen asked the regular question the mirror stopped, thought a little, and responded:
Bright Shimmer of golden feathers, she
Has much fairer feathers than thee
Grenta raged and threatened but the mirror had to tell the truth, and still responded that it was Bright Shimmer.
Eventually Grenta's rage cooled down and she began to scheme.