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 her best toy mysteriously disappears, Olivia the feisty pig is determined to find out who is responsible.

"Stella volunteers to watch best friend Evie's dog, Bella, for a few days. Disaster strikes when Bella gets loose and runs away. Stella must find her before Evie returns"--

When Kate's little brother loses his hat, Kate, Lisa, Max, and Nick all try to think of a plan to help him find it.

The reader is invited to help Duck and his animal friends find a missing item.

What's a kid entrepreneur to do when he loses his math homework? Invent the Everything Locator, of course! Billy's next invention is a device that will find any lost item and return it to you. But the Everything Locator has one teeny, tiny problem, it returns every item that Billy has ever lost, all at once! Will Billy find a way to make everything right with the Everything Locator? Will he even be able to dig his way out of this pile of junk? Find...

When a bear loses his bright red scarf in the woods, it is found--and lost again--by a series of animals that use it to keep warm or to have fun, but they disagree over who really owns it and cause a problem that only the scarf's true owner can fix.

Ben loves to draw and does so in all of his classes, but his drawings of people are so good he is afraid to let his classmates see them, until the day he loses his notebook and his talent is revealed.

"Sanity and Tallulah live in a space station at the end of the galaxy. When Sanity's illegally created three-headed kitten escapes, the girls have to turn their home upside down to find her in this graphic novel"--

Publisher Annotation: Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon--the mightiest force in the Nine Worlds. But this time the hammer isn't just lost, it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants. Ragnarok will begin. The Nine Worlds will burn. Unfortunately, the only person who...