Title: Siom a sioc
Subjects: Deception, Envy, Juvenile fiction, Truthfulness and falsehood in children, Teenage boys -- Juvenile fiction., Teenage girls -- Juvenile fiction., Dating (Social customs) -- Juvenile fiction., Welsh language -- Readers., Welsh language, Courage, Conscientious objectors, Readers, Karts (Automobiles), Karts, Romans, nouvelles, etc. pour la jeunesse