Marjorie Weinman Sharmat

Nate the Great, a junior detective, is determined to solve the mystery of the missing picture of his friend.

Though it means Nate can't get his dog ready for the smartest pet contest, he agrees to search for the missing prize for the contest.

Nate the Great searches for a missing weed after it disappears from a pot on Oliver's porch.

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.

Nate the Great takes on his first night case and tries to solve the mystery of the garbage snatcher.

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

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

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.

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.