Sworn enemies become staunch friends in this bilingual edition of the popular picture book by Claire Masurel with pictures by Bob Kolar. It's a great way to introduce a second language to very young children, be they English- or Spanish-speaking.Sworn enemies become staunch friends in this bilingual edition of the popular picture book by Claire Masurel with pictures by Bob Kolar. It's a great way to introduce a second language to very young children, be they English- or Spanish-speaking.