Marvin is pleased when his teacher asks him to take care of her dog while she's away, but he soon finds that there's more pressure involved than he likes.
Frustrated because the rules for her class's Pet Day will not let her take her dog to school, Junie B. Jones considers taking a raccoon, a worm, a dead fish, and other unusual replacements.
Photographs and simple text teach children the basics of cat care, includin how to choose the right cat, how to look after a new kitten, and how to groom and wash a cat.