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

Even a deep snow the week before Christmas can't keep Nate the Great and his dog Sludge from finding the special card sent to Annie's dog Fang by his mother.

As more and more of his flowers display the bite marks of a wandering tortoise, Nate sets out to uncover the mystery of the reptile's origins.

When Rosamond looks into her crystal ball to read Nate the Great's future, she sees a new case for him to solve-- her money box is missing and she wants him to find it.

Nate and his dog Sludge try to solve a case on Halloween night and find themselves locked in a haunted house.

Nate the Great investigates the disappearance of a homemade pillowcase belonging to Rosamond's cat Big Hex.

Nate the Great investigates the mysterious disappearance of the purple plastic octopus that his baseball team uses for second base.

Nate the Great and his cousin Olivia are on the case of a runaway turkey, but unfortunately the clues appear to contradict each other.

Nate the Great and his dog Sludge try to track down Claude's missing Stegosaurus stamp.

When he finds a torn piece of paper with only part of a word on it, boy detective Nate sets out to find the missing pieces.