The Clue of the Left-Handed Envelope


Book Description

Todd uses clues from earwax and a pink handkerchief in order to discover which of his schoolmates has been in his treehouse.




The Secret of the Wooden Witness


Book Description

Can the Third-Grade Detectives crack a case without Mr. Merlin?




The Clue of the Left-Handed Envelope/The Puzzle of the Pretty Pink Handkerchief


Book Description

Todd and Noelle use the detective skills they learn from their new teacher Mr. Merlin to figure out who sent a classmate an anonymous letter and find out who has been using Todd's tree house without his permission.




The Puzzle of the Pretty Pink Handkerchief


Book Description

Todd uses clues from earwax and a pink handkerchief in order to discover which of his schoolmates has been in his treehouse.




The Riddle of the Stolen Sand


Book Description

The Detectives are looking for clues to clear Mr. Roper of charges that he stole the oysters.




The Mystery of the Stolen Statue


Book Description

The Third-Grade Detectives investigate when a fifteenth-century statue is stolen from and art museum and destroyed.




The Mystery of the Hairy Tomatoes


Book Description

Noelle and her friend Todd decide to investigate when her dog Rover is unjustly accused of tearing up Mrs. Ruston's tomato plants.




The Vampire's Visit


Book Description

In "The Vampire's Visit, " Salt and Pepper's visit to London, England takes an unexpected turn when they notice that garlic hangs at every window in their home away from home ... except theirs! Sure enough, a teenage vampire turns up and asks for their help. When they refuse, Christine's little brother Hal disappears in an event that soon embroils the dynamic duo in a full-fledged vampire gang war!




The Case of the Dirty Clue


Book Description

Noelle and Todd track down the owner of the car that ran over Misty's brand-new bike.




The Toothpaste Millionaire


Book Description

Sixth-grader Rufus Mayflower doesn't set out to become a millionaire. He just wants to save on toothpaste. Betting he can make a gallon of his own for the same price as one tube from the store, Rufus develops a step-by-step production plan with help from his good friend Kate MacKinstrey. By the time he reaches the eighth grade, Rufus makes more than a gallon--he makes a million This fun, breezy story set in 1960s Cleveland, Ohio contains many real-life mathematical problems which the characters must solve to succeed in their budding business. Includes black-and-white illustrations by Jan Palmer. This edition includes an exclusive author interview and reader's guide with book summary and discussion questions.