Book 1

With the help of their third-grade teacher and classmates, Noelle and Todd discover who sent an anonymous letter to Amber Lee.

Book 1


Book 1


Book 2

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

Book 3


Book 3

When her dog Rover is accused of tearing up Mrs. Ruston's tomato plants, Noelle investigates with her friend Todd and finds long yellow hairs that may point to the real culprit.

Book 4


Book 4


Book 5


Book 6


Book 7


Book 8

"Someone knocked out Todd and Noelle's friend Pops Verner, the night watchman at the department store, and stole his treasured pocket watch. He's pretty sure the robber is one of the three men who work in the storeroom. But how can he figure out which one ..."--Cover back.

Book 9


Book 10