Marjorie Weinman Sharmat

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

Nate the Great and his dog Sludge look for Annie's housekey which has mysteriously disappeared.

While traveling on the train to San Francisco with his cousin Olivia's owl, Nate the Great and his dog Sludge must use all of their detective skills when the owl suddenly disappears.

When Rosamond turns a phone message from Pip's mother into a music lesson with a secret meaning, Nate the Great steps in to solve the mystery.

Nate the Great and his dog Sludge try to track down Claude's missing Stegosaurus stamp. Includes related facts, recipes, and activities.

On Career Day Santa Claus visits school and tells the children how he was trained for his job by the old Santa.

Wealthy secret agent Olivia Sharp helps depressed Duncan find a friend.

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.

A New York City boy's preconceived ideas of life in the West make him very apprehensive about the family's move there.

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