Penny feels guilty after taking a beautiful blue marble that she sees in Mrs. Goodwin's grass, but gets a pleasant surprise when she goes to return it the next day.

When Big Al the little dog gets separated from his trucker friend, Jo, at a roadside rest area, he patiently waits, resisting the attention of other drivers, knowing that Jo will return and find him.

"A famous author is coming to visit and Eva and her classmates are assigned to write a story--but Eva Wingdale is totally distracted because her pet bat, Baxter, has gone missing, and she suspects that the sneaky squirrels have something to do with her missing pet"--Title verso page.

When first-grader Roscoe discovers that his stuffed pig is missing from his backpack, he accuses the class bully of "pig-napping" and gets even by taking the bully's teddy bear.

Dash Candoo's Monday is filled with adventure--during breakfast battling scallywags and the Devil Cat and then at school, confronted with Total Mayhem Situations involving an assortment of missing objects.

Mittens the kitten goes for a walk with Nick, but he is distracted by a butterfly and becomes lost.

Discovering a smelly creature in her garbage can that she names after herself, Olga befriends and studies the eccentric Olgamus using the scientific method, the practices of Jane Goodall, and other scientific concepts.

"Blue River Creek has a problem: There's a pet thief on the loose! Or at least Iggy and Sofia are convinced that there is. But as a scientist, Ada knows it's important to follow the facts and not jump to conclusions. And the only fact they have right now is that a lot of pets are missing. How will Ada, Iggy, Rosie, Sofia, and Aaron figure out what happened to the town's pets? With the scientific method, of course! Through making a hypothesis, collecting...

Barry Wizard's five acrobatic frogs are missing, and Araminta and her best friend Wanda, aided by the spectral Sir Horace, follow the trail to Morris's Water Wonderland, where something fishy is going on.

"There are a few things you should know about Harriet Wermer: She always tells the truth. She's loving spending her summer on Marble Island, where she is an A+ mystery-solver. Okay, maybe she doesn't always tell the truth. Actually...she has a tendency to lie quite a bit. Which is why, when one of the guests at her grandmother's bed-and-breakfast finds that their treasured pair of binoculars has gone missing, no one believes Harriet when she said...