The book tells the story of Valynn, who protects a garden containing an enchanted apple tree, the fruit of which contains the essence of Oz magic.

Exploring the castle, they find a woman named Valynn, the guardian of an enchanted apple tree.

Bortag tries to tell the Witch that he loves her, but she steals the apples and performs a spell to transport herself to the tree.

After being spurned, Bortag wants to walk into the desert to die, but Billina convinces him to go to the castle by riding on Drox.

Meanwhile, Valynn, Ozma and Dorothy arrive at the castle, where Scarecrow tells them that some of the apples were stolen and that the Witch is eating all the remaining ones.

However, the belt catches the Witch's shoes, hoisting her in the air, and she uses her chance to turn Drox into a cloud.

After falling to the ground, in which course Scarecrow is accidentally ripped to pieces, Bortag claims the belt and turns the Wicked Witch to stone.

The next day, back in the Emerald City, Ozma discovers that with too many of the apples lost, the magic of Oz is still draining away and without the belt there's nothing they can do.

Finally, she teleports Bortag and Drox to the ocean, ending the story by saying that "when one's heart is content, true happiness is never far away".