Rupert the mouse wants to star in an artistic, wordless picturebook, but his animal friends cause problems by talking too much.

When the class pet bites the finger of Penelope, a tyrannosaurus rex, she finally understands why she should not eat her classmates, no matter how tasty they are.

When cheerful Ruth the rabbit tries to share with grumpy Bruce the bear the wonderful smells of spring, they discover that spring stinks.

Nibbs the mouse wants to give Bruce the bear a Big Fun Day, but unfortunately grumpy Bruce does not like fun.

It is autumn in Soggy Hollow and the mice have a lot to be thankful for, but Bruce the bear is not so thankful for all the thanking.

"Most kids have dogs and cats and fish and guinea pigs. Penelope Rex has Mittens. Penelope wasn’t sure she even wanted a pet when Mittens came into her life. But now that he’s here, she is determined to make the best of it. Pets, however—especially ones that are six hundred pounds with six-inch-long teeth—can cause very big, very messy problems."--