The enormous suitcase

"Kelsey thinks she should live in one house and her mom and dad should visit her. Instead, she puts her books and her unicorn picture and her favourite pillow in her suitcase and takes them with her as she goes back and forth. But what will happen when she decides to pack up the dog? A charming story about a girl making the best of her co-parenting situation, and the mom and dad (and dog!) who love her"--Provided by publisher.