Best Mysteries
Secret Coders Series
The Boxcar Children Series
Mo and Dale Mysteries
The Real McCoys
The Mysterious Benedict Society
Randi Rhodes Ninja Detective
All the Wrong Questions
Nate the Great Series
High Rise Private Eyes
Capital Mysteries Series
A to Z Mysteries Series
The Westing Game
Woof
Ali Cross
Mariella Mystery
Milo and Jazz
Precious Ramotswe Series
Howard Wallace, P.I.
Nancy Drew Series
The Parker Inheritance
How I Became a Spy
The Winterhouse Mysteries
Super Puzzletastic Mysteries
Escape from Mr. Lemoncello’s Library
Moon Base Alpha Series
Shelby Holmes
Chicken Squad
Finally, Something Mysterious
Room One
Connect the Dots
The Buddy Files
Chasing Vermeer
Julieta and the Diamond Enigma
Inspector Flytrap
Wallace and Grace
Cam Jansen Series
39 Clues Series