8-10 years Hardcover Mystery & Thriller Books

Gravity Falls Dipper's and Mabel's Guide to Mystery and Nonstop Fun by Rob Renzetti

The Grim Grotto- Book the Eleventh A Series of Unfortunate Events by Lemony Snicket

The Hostile Hospital- Book the Eighth A Series of Unfortunate Events by Lemony Snicket

The Phoenix of Destiny Geronimo Stilton and the Kingdom of Fantasy- Special Edition 1 by Geronimo Stilton

The Goonies: The Illustrated Storybook by Brooke Vitale

The Miserable Mill- Book the Fourth A Series of Unfortunate Events by Lemony Snicket

Classic Starts: The Adventures of Sherlock Holmes by Arthur Conan Doyle

I Spy Mystery by Jean Marzollo

Stella and the Mystery of the Missing Tooth by Clothilde Ewing

The Penultimate Peril- Book the Twelfth A Series of Unfortunate Events by Lemony Snicket

5-Minute Avengers Stories by Marvel Press Book Group

The Austere Academy- Book the Fifth A Series of Unfortunate Events by Lemony Snicket

Off the Hook (InvestiGators Series #3) by John Patrick Green

The Slippery Slope- Book the Tenth A Series of Unfortunate Events by Lemony Snicket

The Bad Beginning: Book the First (A Series of Unfortunate Events) by Lemony Snicket

Dog Man and Cat Kid (Dog Man Series #4) by Dav Pilkey

Heist and Seek (InvestiGators Series #6) by John Patrick Green

The End- Book the Thirteenth A Series of Unfortunate Events by Lemony Snicket

I Spy A to Z: A Book of Picture Riddles by Jean Marzollo

The Reptile Room- Book the Second A Series of Unfortunate Events by Lemony Snicket

The Magical Unicorn Society Official Handbook (The Magical Unicorn Society Series #1) by Selwyn E. Phipps

The Ersatz Elevator- Book the Sixth A Series of Unfortunate Events by Lemony Snicket

Who Is the Mystery Reader? (Unlimited Squirrels Series #2) by Mo Willems

The Wide Window- Book the Third A Series of Unfortunate Events by Lemony Snicket

Mac Undercover (Mac B., Kid Spy Series #1) by Mac Barnett

The Windeby Puzzle- History and Story by Lois Lowry

Flotsam: A Caldecott Award Winner by David Wiesner

The Vile Village- Book the Seventh A Series of Unfortunate Events by Lemony Snicket