"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.)"--

In this story without words, Molly must overcome her fear of the shadowy monsters that only she can see in order to return a lost book, and so make a new friend.

A little fish thinks he can get away with stealing a hat.

After Trixie and daddy leave the laundromat, something very important turns up missing.

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.

The Aldens are visiting friends for a big Dia de los Muertos celebration. The kids love learning about the holiday and helping out - that is until mysterious events threaten to ruin everyone's preparations. Can the Aldens figure out what's going on and help their friends save the celebration?

Kayla places her tooth in a Tooth Fairy pillow, but it disappears before the Tooth Fairy has a chance to visit--can her dog King help Kayla find the missing tooth?

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

Spencer loves books and reads one every night, sometimes aloud, then puts the book back in its place, but one morning his favorite book is missing, and the next day another, each replaced by a different object.

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