"Best friends Harry and Doug must find their teacher's missing diamond in time for the class talent show."--

When Pedro's favorite stuffie, Milo the Moose, goes missing at the fair, Katie and Pedro retrace their steps in order to solve the mystery.

While Jenn is seeking Prudence, her big, sleek and shiny, black and white dog, she meets and falls in love with Roscoe, a scruffy little golden dog.

After his pet rabbit dies, Josh feels sad and does not want to own another pet until an elderly neighbor's cat goes missing.

When her doll Marabelle goes missing, Nancy and her friend Bree become sleuths to crack the case.

Eleven-year-old Millie and five other girls, snowed in at Amelia Earhart Birthplace Museum in Atchison, Kansas, are on a scavenger hunt when the lights go out and Amelia's aviator goggles go missing.

When one of Kayla's library books goes missing, King and Kayla's friend Jillian must help her solve the crime

Katie has bought a box of chocolates for her mom's birthday, but when they go to open it the box is missing, and Katie and Pedro set out to track down the thief.

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 lost item locator, twelve-year-old Lyle Williams, also known as Mudshark.

Barry Wizard's five acrobatic frogs are missing, and Araminta and Wanda, aided by the spectral Sir Horace, follow the trail to Morris' Water Wonderland.