Using her excellent memory, Cam Jansen, aided by her friend Eric, investigates the disappearance of Mrs. Scott's valuable pearl necklace during a charity brunch.

When Horrible Harry's pet cat, Googer, sneaks a ride and gets into the school building, third-graders Harry and Doug have to catch him before anyone else does, which means going into some forbidden places.

After a class trip to a floating zoo where animals are mistreated and Savannah's missing pet monkey is found in a cage, Long Island sixth-grader Griffin Bing and his band of misfits plan a rescue.

Sam's favorite thing about second grade is the class pet, a hamster named George Washington, so when the class goes on a field trip to a science museum, Sam cannot resist bringing George along.

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's a storm brewing over Eerie-on-Sea, and the fisherfolk say a monster is the cause. Someone has woken the ancient Gargantis, who sleeps in the watery caves beneath this spooky seaside town where legends have a habit of coming to life. It seems the Gargantis is looking for something: a treasure stolen from her underwater lair. And it just might be in the Lost-and-Foundery at the Grand Nautilus Hotel, in the care of one Herbert Lemon, Lost-and-Founder....

When a baseball game is stopped because of a lost ball, Cam uses her photographic memory to find the ball.

During a trip to Oregon, the Aldens are astonished when Watch discovers a backpack filled with valuables, a finding that compels them to learn what happened and return the backpack to its rightful owner.

Percy Pea is sure his little brother, who is not supposed to touch Percy's things, is responsible for his missing action figure, but when detectives Bob and Larry try to solve the mystery, Percy and Larry both learn a lesson about sharing.

Almost a year after settling down in Oregon, Coyote embarks on a cross-country road trip with her dad to scatter her mom's ashes, but the journey takes an unexpected turn when she realizes the secret to the chosen resting place lies in a lost book.