Most Popular Adventure Books of the 2020s

Daughter of the Deep #1

Daughter of the Deep

Rick Riordan

Fantasy · Childrens · Adventure

October 26, 2021

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

Adventures of Takuan from Koto #1

Prince of Blue Flowers

Ryu Zhong

Fantasy · Fairy Tale · Young Adult · Adventure

December 20, 2022

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

Adventures of Takuan from Koto #2

Hunters of Weredemons

Ryu Zhong

Fantasy · Fairy Tale · Young Adult · Adventure

April 1, 2023

City Spies #7

Europa

James Ponti

Middle Grade · Adventure · Mystery

February 10, 2026

Hilo #10

Rise of the Cat

Judd Winick

Science Fiction · Middle Grade · Graphic Novels · Comics · Adventure

February 27, 2024

Last Comics on Earth #1

The Last Comics on Earth

Max Brallier, Joshua Pruett

Fantasy · Middle Grade · Graphic Novels · Comics · Adventure

April 25, 2023

Spy School #10

Spy School Project X

Stuart Gibbs

Middle Grade · Adventure · Mystery

September 6, 2022

Spy School #8

Spy School Revolution

Stuart Gibbs

Middle Grade · Adventure · Mystery

October 6, 2020

Elydes #1

Elydes

Drew Wells

Dark Fantasy · Epic Fantasy · High Fantasy · LitRPG · Adventure

June 18, 2024

Path of the Ranger #20

The King's Sacrifice

Pedro Urvi

Fantasy · Middle Grade · Young Adult · Adventure

February 28, 2024

Serpents of Serant #11

The Naga Wanderer's Wounded Mate

Robin O'Connor

Science Fiction · Alien Romance · Fated Mates · HEA Ending · Monster Romance

August 18, 2026

The ABCs of Alien Abduction #1

A is for Abduction

Honey Phillips

Science Fiction · Alien Romance · HEA Ending · Adult · Adventure

July 2, 2026

Serpents of Serant #10

The Naga Exile's Frozen Mate

Robin O'Connor

Science Fiction · Alien Romance · Fated Mates · Monster Romance · Naga

February 24, 2026

Monster Mercenary Mates #8

Claimed by the Alien Mercenary

Robin O'Connor

Fantasy · Science Fiction · Alien Romance · Fated Mates · Monster Romance

January 27, 2026

Across Time and Starlight

Alessandro Candotti

Fantasy · Science Fiction · Fairies · Adventure

September 17, 2025

Serpents of Serant #9

The Naga Scout's Daring Mate

Robin O'Connor

Science Fiction · Alien Romance · Fated Mates · Monster Romance · Naga

November 11, 2025

The League of Extraordinary Gentlemen

The League of Extraordinary Gentlemen

Cássio Dorfschmidt

Science Fiction · Steampunk · Adventure · Alternate History · Historical Fiction

February 3, 2025

Serpents of Serant #8

The Naga Shaman's Pregnant Mate

Robin O'Connor

Science Fiction · Alien Romance · Fated Mates · Monster Romance · Naga

July 1, 2025

The Tea Merchant #1

On Other Shores

Nelson McKeeby

Fantasy · Adventure

September 5, 2025

Saga of the Jewels #1

Fire and Lightning

Thomas Tarasios

Fantasy · Steampunk · Sword and Sorcery · Young Adult · Short Stories

May 1, 2025

Serpents of Serant #7

The Naga Princess's Soldier Mate

Robin O'Connor

Science Fiction · Alien Romance · Monster Romance · Naga · Adult

January 14, 2025

Nic Blake and the Remarkables #2

Nic Blake and the Remarkables

Angie Thomas

Fantasy · Middle Grade · Adventure

October 15, 2025

Serpents of Serant #6

The Naga Inventor's Clever Mate

Robin O'Connor

Science Fiction · Alien Romance · Monster Romance · Naga · Adult

October 22, 2024

Serpents of Serant #3

The Naga Warlord's Virgin Mate

Robin O'Connor

Science Fiction · Alien Romance · Naga · Adventure · Romance

May 9, 2024

Serpents of Serant #4

The Naga Maverick's Determined Mate

Robin O'Connor

Science Fiction · Alien Romance · Naga · Adventure · Romance

May 9, 2024

Serpents of Serant #5

The Naga Scavenger's Precious Mate

Robin O'Connor

Science Fiction · Alien Romance · Naga · Adventure · Romance

June 18, 2024

Starlight Brides

Alien Triton's Prize

Lynnea Lee

Science Fiction · Alien Romance · Mermaid · Monster Romance · Paranormal Romance

September 12, 2024

Last Comics on Earth #2

The Last Comics on Earth: Too Many Villains!

Max Brallier, Joshua Pruett

Fantasy · Middle Grade · Graphic Novels · Comics · Adventure

April 30, 2024

Written in the Stars

Leslie Chase

Science Fiction · Cats · Adventure · Romance

May 2, 2023

Serpents of Serant #2

The Naga Brute's Warrior Mate

Robin O'Connor

Science Fiction · Alien Romance · Naga · Adventure · Romance

November 14, 2023

Serpents of Serant #1

The Naga Outcast's Unwanted Mate

Robin O'Connor

Science Fiction · Alien Romance · Naga · Adventure · Romance

September 29, 2023