When the Olympians arrive on the island of Lemnos, they meet the metal-working Hephaestus who is hesitant to leave with the gods, stating that the only way he will join them is if he gets to be their leader.

When ten-year-old Zeus is kidnapped, he discovers he can defend himself with a magical thunderbolt.

The Olympians must face the fierce giant Typhon in order to find magic seeds that will help grow the earth after the terrible drought brought upon the land by Hyperion.

The Heroes in Training are entering the Underworld—if Hades can conquer his canine fears, that is. The Underworld usually isn’t really meant to be a fun place—but tell that to Hades! He loves the dark and the stinky smell of sulfur. However, there is one thing that Hades is not a fan of: dogs. And when Zeus and his fellow Olympians encounter Cerberus—a snarling, three-headed dog—Hades must conquer his fears and tame the hound so everyone can continue into the Underworld and deposit their Titan prisoner, Oceanus, back where he belongs! But with magical water that causes forgetfulness, hot beds of lava, and another epic battle with two more Titans standing in their way, will Zeus and his heroes make it out of the Underworld with everyone intact?

Zeus and the rest of the Olympians try to rescue Artemis from the clutches of a Titan named Crius who has her under a sleeping spell.

Zeus and his fellow gods-in-training attempt to capture the king of hell’s hound in this latest Heroes in Training chapter book! Zeus and his fellow gods-in-training face a new challenge in the underworld when they attempt to capture Cerberus—the three-headed guardian and cherished pet of Zeus’s brother Hades. But they find themselves up against even more than they anticipated when they have to face off against Melinoe and her skeletal minions.