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

During Spring Break, mystery lover Amy looks for clues to the disappearance of wealthy Ms. Sullivan's Saint Bernard puppy.

Nate and his dog Sludge are determined to find the recipe for his mother's monster cookies.

The reader is asked to help Nate the Great solve the mystery of his friend Annie's missing dog Fang.

When a wolf cub and little girl are lost in a snowstorm they must find their way home.

Principal Wagner confidently deals with a faculty washroom crisis, a psychic parrot, and a terrorizing gerbil, but when sixty-five erasers go missing, he enlists the help of the school's best problem solver and locator of lost items, twelve-year-old Lyle Williams, aka Mudshark.

When she cannot find her favorite stuffed toy, a young girl asks her mother, father, and older sister for help.

When Emma's little brother Jake looks after the neighbor's dog in preparation for getting his own puppy, the pet goes missing and Emma and the rest of the girls have to find it before the owner comes home.

After being noticed by songbird Serenade, Pinkie Pie is offered a spot as a backup dancer for the famous pop star, but when things go missing during rehearsals it's up to Pinkie Pie to track down the culprit.

When their most valuable loot, a big hunk of cheese, is stolen, Riff Raff and his rodent pirate gang embark on a quest to reclaim their lost treasure.