In the perilous Black Ocean lurks Narga the Sea Monster. As well as preying on the rebels and fighting evil wizard Malvel, Narga is holding one of the good Beasts of Avantia captive. Can Tom set the good Beast free, or will it remain trapped in the Dark Realm for ever?

"As Tom and Elenna navigate the horrid terrain of Gorgonia, they quickly realize that nothing is what it seems to be. Each step brings them to another dangerous encounter. But Tom won't give up. Not when Epos the Winged Flame is being held captive somewhere in the Dark Realm and Malvel has created a wicket winged Beast of his own. With the help of his friends, Tom is determined to chase down the evil wizard and return all of the good Beasts back to...

In The Dark Wizard, the children travel to the coast of England, where Amy hatches and bonds with a new Beast. They discover the secret of Charlie's grandfather's connection with a sea-Beast, and in a thrilling battle with their enemy, the Dark Wizard Malvel, they open a portal to Avantia and banish him. But their destiny is not yet fulfilled - there are many more hidden Beast eggs for the children to recover. The fate of the worlds depends on them....

Tom has fallen under the power of an enchantment cast by an old foe, and needs Elenna's help. Now they must fight a mighty underwater Beast with terrifying tentacles!