If you've watched SOFIA, then you already know the importance of The Amulet of Avalor - a beautiful purple charm bestowed upon her by her Stepfather, King Roland. As he's said in the past, the Amulet "practically chose Sofia," so there's a sentimental attachment beyond the mysterious. Among it's magical powers are the ability to speak to animals, and the ability to summon of famous Disney Princess in times of need. It's when the Amulet falls out of Sofia's hands that problems can arise. In this case, Step-sister Amber lets her jealously drive her to theft.
Ok, so while Amber might've looked at it as "borrowing" the Amulet, the powers held within most certainly viewed it as theft, and rather than letting the jealous Princess summon her intended target - TANGLED's Rapunzel, it cursed her by bringing her the never-heard-of-before Princess Ivy. The black-and-white-cloaked Ivy had been exiled from her own Kingdom, and once in Enchancia determined it to be ripe for takeover, setting the stage for a battle that could only be won by self-sacrifice. Much as Anna gave herself for Elsa in FROZEN, Amber takes a hit in Sofia's place to right the wrongs of the curse she brought upon herself, and all is well again.
We've been big into SOFIA THE FIRST since Day One, and THE CURSE OF PRINCESS IVY is another great tale from a realm we hope lives on for years to come.