Marjorie Weinman Sharmat

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

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

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

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.

In spite of a phony clue and trouble from a fierce cat, Nate the Great is able to use his skills of detection to find the remaining parts of an incomplete message left mysteriously on his doorstep.

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 dinosaur's exuberance about moving cools considerably when he realizes how much he misses his next-door friend.

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