"Oxford University Press." . . "Guinea pigs." . . . . "Children's stories" . . . . . . . "Juvenile works" . . "Juvenile works"@en . . . "Fiction" . "Fiction"@en . . . . . . . . "Olga, the guinea pig, attempts to save the Sawdust family from the effects of drought, participates in a sponsored squeak, and to everyone's consternation even takes up jogging." . "Olga, the guinea pig, attempts to save the Sawdust family from the effects of drought, participates in a sponsored squeak, and to everyone's consternation even takes up jogging."@en . . "Olga takes charge" . . . "Olga takes charge"@en . . "Guinea pigs Juvenile fiction." . .