Nancy and her friends interview Terry Smith, who takes in stray cats and kittens; but when two kittens turn up missing, the girls must discover what happened to them.
When the class hamster goes missing, Katie brings in a bunny to be the new class pet. When someone starts wrecking the Spring Fair preparations, all signs point to the bunny. Nancy is on the case, and she may solve two mysteries at once.
Eight-year-old Nancy Drew has a chance to win a trip to a space camp by guessing the number of jelly beans in a jar at McCormick's grocery store, but someone has taken the jar sending Nancy on the hunt for the culprit.