While picking blueberries on a warm summer afternoon, Cammy and her brother see signs of unseen animals and their activities including footprints, a dam, and a floating feather.
Alfred the aardvark lives with his mother on the "A" page of the dictionary, and when his pet ant, Itty Bitty, slips out of the ant farm to visit the zoo, Alfred goes after him, digging all the way down to "Z.".
Mr. Snail tells a mouse his secret, and the mouse passes it on to the beetle who tells the turtle, and so on, until the secret gets back to Miss Snail.