Glinda plays the most active role in finding and restoring Princess Ozma, the rightful heir, to the throne of Oz, the search for whom takes place in the second book, "The Marvelous Land of Oz", although Glinda had been searching for Ozma ever since the princess disappeared as a baby. It may well be that she did not overthrow the Wicked Witches of the East and West, despite being more powerful than they were, because she wanted all of Oz to be unified under its rightful ruler, Ozma, first. After Ozma's ascent to the throne, Glinda continues to help the Princess of Oz shape the future of the Land of Oz as a whole, no longer confining her powers to guarding her Quadling Kingdom in the South alone; true to her character, Glinda does not interfere in affairs of State unless Ozma seeks her counsel or help specifically.