Most Popular Mystery Books

City Spies #3

Forbidden City

James Ponti

Middle Grade · Adventure · Mystery

February 1, 2022

City Spies #6

London Calling

James Ponti

Middle Grade · Adventure · Mystery

February 4, 2025

City Spies #4

City of the Dead

James Ponti

Middle Grade · Adventure · Mystery

February 7, 2023

Spy School #13

Spy School Blackout

Stuart Gibbs

Middle Grade · Adventure · Mystery

October 7, 2025

Spy School #12

Spy School Goes Wild

Stuart Gibbs

Middle Grade · Adventure · Mystery

September 24, 2024

Dr. Wren Muller #1

The Butcher and the Wren

Alaina Urquhart

Crime Fiction · Mystery · Thriller

September 13, 2022

City Spies #7

Europa

James Ponti

Middle Grade · Adventure · Mystery

February 10, 2026

Stephanie Plum #31

Now or Never

Janet Evanovich

Mystery · Romance

November 19, 2024

The Olaiya Series #1

Awake in Olaiya

M.E. Duffield

Science Fiction · Mystery

August 29, 2023

InvestiGators #1

InvestiGators

Green John Patrick

Middle Grade · Graphic Novels · Mystery · Comics

February 25, 2023

Spy School #10

Spy School Project X

Stuart Gibbs

Middle Grade · Adventure · Mystery

September 6, 2022

Ali Cross #3

The Secret Detective

James Patterson

Middle Grade · Mystery

June 27, 2022

Spy School #8

Spy School Revolution

Stuart Gibbs

Middle Grade · Adventure · Mystery

October 6, 2020

Thomas Vale #1

Blood Game

Jeffe Boats

Mystery · Thriller

June 20, 2025

Alpha Blood - The Battle for Sanguis #1

Facing Recognition

C.M. James

Horror · Science Fiction · Alternate History · Mystery · Thriller

February 14, 2024

Miss Fortune Mysteries #28

Marsh Madness

Jana DeLeon

Cozy Mystery · Mystery

September 2, 2024

InvestiGators #6

Heist and Seek

Green John Patrick

Middle Grade · Graphic Novels · Mystery · Comics

September 27, 2022

InvestiGators #3

Off the Hook

Green John Patrick

Middle Grade · Graphic Novels · Mystery · Comics

February 23, 2021

Joseph Bridgeman #2

The Shadows of London

Nick Jones

Science Fiction · Mystery

June 1, 2021

Joseph Bridgeman #1

And Then She Vanished

Nick Jones

Science Fiction · Mystery

February 2, 2021

InvestiGators #2

Take the Plunge

Green John Patrick

Middle Grade · Graphic Novels · Mystery · Comics

September 29, 2020

Sherlock Holmes (James Lovegrove)

Sherlock Holmes and the Beast of the Stapletons

James Lovegrove

Fantasy · Horror · Science Fiction · Crime Fiction · Sherlock Holmes

October 13, 2020

Spy School #7

Spy School British Invasion

Stuart Gibbs

Middle Grade · Adventure · Mystery

April 30, 2019

Spy School #6

Spy School Goes South

Stuart Gibbs

Middle Grade · Adventure · Mystery

October 1, 2018

Spy School #5

Spy School Secret Service

Stuart Gibbs

Middle Grade · Adventure · Mystery

October 10, 2017

Spy School #3

Evil Spy School

Stuart Gibbs

Middle Grade · Adventure · Mystery

April 21, 2015

The Birds and Other Stories

Daphne du Maurier

Horror · Short Stories · Mystery

1952

Miss Fortune Mysteries #30

Marsh Mystics

Jana DeLeon

Cozy Mystery · Mystery

April 19, 2026

Thomas Vale #2

Crying Call

Jeffe Boats

Mystery · Thriller

February 3, 2026

Detective Inspector Bob Willis #2

Blast from the Past

Damien Boyd

Crime Fiction · Suspense Thriller · Mystery · Thriller

January 6, 2026

The Grandest Game #3

The Gilded Blade

Jennifer Lynn Barnes

Young Adult · Mystery · Thriller

July 14, 2026

Detective Inspector Bob Willis #1

Deceived By The Light

Damien Boyd

Crime Fiction · Suspense Thriller · Mystery · Thriller

January 14, 2025

Beatrice Steele #2

A Terribly Nasty Business

Julia Seales

Historical Fiction · Mystery

June 24, 2025

Detective Katie Scott #13

Find My Daughter

Jennifer Chase

Crime Fiction · Mystery · Thriller

February 17, 2025

Agents of S.U.I.T. #3

Wild Ghost Chase

Green John Patrick, Chris Hastings, Pat Lewis

Middle Grade · Graphic Novels · Mystery · Comics

February 18, 2025

Detective Kim Stone #21

36 Hours

Angela Marsons

Crime Fiction · Mystery · Thriller

December 10, 2024