After burying the sorcerer's hat in Arendelle, Ingrid visits the sorcerer's apprentice in the Enchanted Forest to find a third sister. He tells her such a person is rare but Ingrid insists on waiting. Back in Arendelle, Ingrid reveals to Elsa what Anna learned during her journey and lies that Anna intended to use the hat on her. Elsa is doubtful so Ingrid explains that Gerda trapped her in the urn and Anna will never understand her. Instead of turning on one another, the two sisters conspire to trap Ingrid in the urn, however, Ingrid is one step ahead and traps Anna again. Under duress, Anna tells a story of a grief stricken king who cursed his kingdom with a mirror which makes people see the worst in others. Ingrid reveals she wants to cast this spell, but states it's hard to enact and sh