 The first twelve books see Keeah, Eric, Neal, and Julie trying to find and free Keeah's mother, Queen Relna, from a curse placed on her by Witch Demither that forces her to shift shapes; she goes from being a bird, to a dragon, to a tiger, and finally a dolphin before becoming human again.The fourteenth, fifteenth, and sixteenth books and the first special edition introduce the plot involving Zara, the Queen of Light, and her three sons