As Little Ghost searches the night for her lost "boo," her animal friends offer to lend their sounds but she will need the reader's help to find her special sound.

A five-year-old boy searches high and low for his missing dinosaur, and the people he asks for help do not believe such a creature actually exists.

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

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

Nini Cat enjoys her outdoor adventure until she ventures too far and can't find her way home.

"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"--

King's human, Kayla, has baked some treats for a friend's new puppy, Thor, but some go missing and it is up to King to find the culprit.

Mini finds a dog in the park wearing shoes but no collar and begs to keep him, but soon she realizes that whoever put the shoes on him loves the dog, as well.

"Third-grader Aven Green has been solving mysteries for a whole month, cracking such cases as The Mystery of the Cranky Mom. But can this perceptive detective solve two cases at the same time? First her teacher's lunch bag disappears. Then Aven's great-grandma's dog goes missing. Fortunately, since Aven was born without arms, all the "arm" cells went to her super-powered brain instead. (That's her theory.)"--

When his best friend, Jack, leaves him behind at the doctor's office, Dexter T. Rexter panics. First he tries to find Jack. Then he sings their special song. Then he sings their special song even louder.