Book Series · 18 Books

Heroes in Training Books

In order from Zeus and the Thunderbolt of Doom to Zeus and the Skeleton Army.

Where the story begins

First Book in the Series

Sale price

$674

Book #1 · Chapter Book · Ages 6–9 · 2012

Zeus and the Thunderbolt of Doom

By Joan Holub, Suzanne Williams, Craig Phillips (Illustrator)

A young boy discovers he is the trueborn king of the Olympians and embarks on a quest to rescue his siblings and defeat the evil King Cronus.

112 pages· 10,888 words· Est. 2 hour read

4.3/7 Bookroo experts

$6.99Save 4%

Summary: Ten-year-old Zeus, tired of his mundane life and frequent lightning strikes, is thrust into an epic adventure when kidnapped by Titans. Armed with a magical thunderbolt, he must decipher its secrets to rescue fellow Olympians and challenge the tyrannical Cronus. Can Zeus embrace his destiny and become the King of the Gods?

In reading order

Heroes in Training Series

18 books · Published 2012–2021

Sale price

$674

Zeus and the Thunderbolt of Doom

Chapter Book · Ages 6–9 · 2012

A young boy discovers he is the trueborn king of the Olympians and embarks on a quest to rescue his siblings and defeat the evil King Cronus.

Sale price

$674

Poseidon and the Sea of Fury

Chapter Book · Ages 6–9 · 2012

A young boy embarks on a quest to find a magical trident and rescue his friends from the clutches of the evil King Cronus.

Sale price

$674

Hades and the Helm of Darkness

Chapter Book · Ages 6–9 · 2013

A group of young gods embark on a quest to retrieve the Helm of Darkness and rescue their friends from the Underworld.

Sale price

$674

Hyperion and the Great Balls of Fire

Chapter Book · Ages 6–9 · 2013

Olympians dodge fireballs to uncover Hyperion's fiery mystery.

Sale price

$674

Typhon and the Winds of Destruction

Chapter Book · Ages 6–9 · 2013

Young Olympians face a giant and a quest to save the earth.

Sale price

$674

Apollo and the Battle of the Birds

Chapter Book · Ages 6–9 · 2014

Zeus faces a deadly bird swarm and a mysterious ally. Friend or foe?

Sale price

$674

Ares and the Spear of Fear

Chapter Book · Ages 6–9 · 2014

Olympians face a giant snake and seek a powerful spear.

Sale price

$674

Cronus and the Threads of Dread

Chapter Book · Ages 6–9 · 2014

Nine young Olympians must work together to rescue their captured friends and defeat the evil King Cronus.

Sale price

$674

Crius and the Night of Fright

Chapter Book · Ages 6–9 · 2015

Ten Olympians embark on a quest to rescue Apollo's twin sister Artemis from the clutches of the Titan Crius.

#10

Sale price

$674

Hephaestus and the Island of Terror

Chapter Book · Ages 6–9 · 2015

A new leader may rise among metal-working warriors. Will Zeus be replaced?

#11

Sale price

$674

Uranus and the Bubbles of Trouble

Chapter Book · Ages 6–9 · 2015

Shipwrecked Olympians face a mysterious threat from the sea's bubbling waves.

#12

Sale price

$674

Perseus and the Monstrous Medusa

Chapter Book · Ages 6–9 · 2016

A hero confronts a deadly gaze that turns warriors to stone.

#13

Sale price

$674

Hermes and the Horse with Wings

Chapter Book · Ages 6–9 · 2017

A group of young Olympians embark on a quest to defeat the evil King Cronus and his minions, the Cronies, while also helping a young boy named Ron defeat a monster called the Chimera.

#14

Sale price

$674

Dionysus and the Land of Beasts

Chapter Book · Ages 6–9 · 2017

Zeus seeks a mysterious ally to defeat King Cronus. Can Dion's powers help or hinder their quest?

#15

Sale price

$574

Zeus and the Dreadful Dragon

Chapter Book · Ages 6–9 · 2018

Olympians must free allies from Tartarus to defeat Cronus. Can they trust them?

#16

Sale price

$674

Hercules and the Nine-Headed Hydra

Chapter Book · Ages 9–11 · 2019

Hercules seeks redemption by facing a deadly Hydra. Can he prevent war on Olympus?

#17

Sale price

$674

Alkyoneus and the Warrior Queen

Chapter Book · Ages 6–9 · 2020

Zeus and Hercules must escape a giant and win a golden belt.

#18

Sale price

$574

Zeus and the Skeleton Army

Chapter Book · Ages 6–9 · 2021

Zeus and friends must capture Cerberus, but face a ghostly army in the underworld.

Companion series

Heroes in Training Graphic Novels Series

3 books · Published 2022–2023

Graphic Nov.

Sale price

$1899

Zeus and the Thunderbolt of Doom (Graphic Novel)

Chapter Book · Ages 8–12 · 2022

A young boy named Zeus embarks on a journey to rescue his friends and uncover the secrets of his past

Graphic Nov.

Sale price

$1899

Poseidon and the Sea of Fury (Graphic Novel)

Chapter Book · Ages 8–12 · 2022

Young Olympians face Titans and sea monsters. Can Poseidon conquer his fear of water?

Graphic Nov.

Sale price

$1899

Hyperion and the Great Balls of Fire (Graphic Novel)

Chapter Book · Ages 8–12 · 2023

The sun blazes fiercely as young Olympians face fiery trials and a missing ally.

Good to know

Common Questions

How many books are in the Heroes in Training series?

There are 18 books in the Heroes in Training series. It began with Zeus and the Thunderbolt of Doom in 2012, and the newest book, Zeus and the Skeleton Army, was published in 2021.