The story begins with the discovery of a mysterious black horse named Chalk in the Kingdom of Skampavia. This horse is no ordinary horse—it is a wishing horse that can grant any wish to its rider. The evil Sultan of Samandra, with dreams of ruling all of Oz, learns of Chalk's power and captures the horse. With the horse under his control, the Sultan wishes to become the ruler of the Emerald City, overthrowing Princess Ozma and erasing the memory of her and all her friends from the minds of the people of Oz.However, two individuals—Snip, a young Gillikin boy, and Pajuka, a giant talking goose—are unaffected by the Sultan's wish. Together, they embark on a quest to restore Ozma to her rightful throne and reverse the Sultan's evil spell. Along the way, they encounter various characters, both old and new, from the land of Oz.