A bear almost gives up his search for his missing hat until he remembers something important.

Disappointed that her monster costume does not frighten anyone, Katie Woo still finds a way to have a happy Halloween.

Junie B. Jones experiences glee while showing off her new furry mittens in kindergarten, but disaster strikes when they disappear from the playground.

A conscientious mouse tries to locate the owner of a single unclaimed shoe.

Ben and Aggie are playing in the park when she chases a ball and does not return, but after looking for her and worrying about her, Ben speaks with his blind friend, Mr. Thomas, who suggests a different approach.

"Cam Jansen must use her photographic memory to find two missing goldfish."--

At Green Lawn Elementary, the entire school becomes involved in a mystery when Mr. Bones, the skeleton in the nurse's office, disappears.

Rose Howard is obsessed with homonyms. She's thrilled that her own name is a homonym, and she purposely gave her dog Rain a name with two homonyms (Reign, Rein) which, according to Rose's rules of homonyms, is very special. Struggling with Asperger's, Rose shares a bond with her beloved dog, but when the dog goes missing during a storm, Rose is forced to confront the limits of her comfort levels, even if it means leaving her routines in order to search...

When three leprechaun statues disappear just before St. Patrick's Day, Bradley, Brian, Nate, Lucy, and other friends follow clues in order to prove that Lucky O'Leary is innocent of the crime.

When Willow's friend Nolin Sometimes sends her a desperate plea for help, Willow sets out on an adventure, that if she fails, Willow, the finder of lost things, may lose her friends and her magic forever.