"Ocean travel Fiction." . . "Free Library of Philadelphia. Children's Literature Research Collection. Onstead Oz Collection." . . "Kings, queens, rulers, etc. Fiction." . . "Fantasy fiction" . . . . . "Fiction" . "Fiction"@en . . . . . "Pirates in Oz" . . "Pirates in Oz"@en . . . . . . . . "Fantastic fiction"@en . . "The Gnome King attempts to capture the Emerald City and regain his magic belt. It is up to Peter to save Oz with the help of a flying poetical pig."@en . . "Juvenile works" . . . "Juvenile works"@en . "Peter returns to Oz and joins King Ato of Octagon Isle, who has been abandoned by his subjects, and Captain Samuel Salt, who has been abandoned by his crew of pirates." . . . . "Oz (Imaginary place) Fiction." . . "Pirates Fiction." . . "Boys FIction." . . . .