All though scary, the crone in a dream is a symbol of great wisdom and empowerment. Often the crone is synonymous with a witch, which traditionally represents darkness, jealousy, vindictiveness or evil.
A metaphysical interpretation of the crone, however, is that she is a primary instigator of spiritual growth that ushers a person who is stuck in their unconscious innocence to find their conscious power. Because the crone does not need a man for fertility purposes, nor does she need the popular opinion of people to feel at peace within herself, the crone represents independence and freedom, and one who makes up his/her own rules. See Witch.
I was in a highschool restroom and a woman was hiding in there to hurt others, i was trying to solve the mystery and got a woman and man to help, first it was nearly empty, then there were lots of women in there