Age range 5 to 12

What do you do when you're feeling so-so? Do you talk to a friend? What happens if you have no one to talk to? 

Snoozie is a cat, who doesn't like moving. Sunny is a dog, who's afraid of the rain. They're very different, but they are the best of friends. One day, while out on their morning walk, they meet a small, timid dog who has been feeling 'so-so' for quite some time. 

How will this chance encounter change all their lives?