This alert merchant is on hand whenever she's needed, and will buy any non-stolen goods you or your group offer her. She won't come to Cyrodiil or Battlegrounds, though—too dangerous.
When summoned, her services can be used by you and your groupmates.
Crown Store items are purchased in the in-game Crown Store. To buy any of the Crown Store's special items, you'll need crowns, a virtual in-game currency. Crowns can be purchased in packs of various sizes, and you'll receive a discount on larger packs!
You can get a monthly allotment of Crowns by signing up for an ESO Plus membership! Learn more about member benefits.