List of Oz Characters - Queen Coo-ee-oh

Queen Coo-ee-oh was the Queen of the Skeezers in Glinda of Oz. Shortly after she is introduced, as an arrogant girl of about fifteen or sixteen, who proclaims herself the only Krumbic witch in the world, for she invented the art, the Su Dic of the Flatheads attacks her island kingdom, and she leads the defense aboard a submarine that opens into a boat. There a bucket of enchanted water is dumped upon her, and she becomes a vain, diamond-eyed swan with no memory of her magical abilities.

Her sudden transformation leaves her domed city stranded beneath the waters of the lake, as only she knew the spell. The Krumbic witchcraft proves to be a hybrid of dark arts mixed with magic learned from the Three Adepts at Magic who used to rule the Flatheads, while the three magic spells to operating the city are identified as the parts of her name.