Readers are requested not to laugh or do anything to influence the behavior of various animal characters in this book.

Discusses different kinds of laughter and the reasons people laugh.

A child's laugh whirls around the house and out the door, encompassing the people on the street and causing laughter everywhere before spinning home again.

When the Gigglesnitcher steals all the laughter from the land of Serendipity, Leo, a rabbit, and Morgan, a unicorn, search for a way to make him give it back.

When they discover that laughter is missing from their kingdom, a jester and his helpmate set out on a quest to find it.

Pinkalicious accepts Tiffany's challenge to a laugh-off, but worries that she will not be able to come up with a joke as funny as the ones in her library book.