Rita is a little girl with a big personality. Whatsit is a dog without a name.
Rita enjoys dressing up, running around, and being in charge. Whatsit enjoys chewing on things, sleeping, and cheating at checkers. Together, they are perfect friends.
In this series of 8 books, the first book of a new series, Rita is not pleased with any of her birthday presents...until one of them starts running away. Filled with adventures in every book, no one knows what's going to happen next.