A sleepy Princess in Black takes a much-needed vacation and rides her bicycle to the seaside, where she plans to nap in a hammock, but her peace is disrupted by a roaring sea monster.

Two lazy monsters are content to live as they always have, in their rock-strewn place between the jungle and the sea, until one day when a strange new yellow monster shows up looking for a new place to live.

Tom and Elenna travel into the desert, facing extreme heat as they battle Malvel's latest beast, Vipero the snake man.

Tom and Elenna journey into the Dark Realm to free the good beasts of Avantia who have been captured by the evil wizard Malvel.

Electra, the new assistant to Frank, who runs the snack bar at the skating rink, bakes terrific monster-sized cookies, but Eddie, Melody, and Howie suspect that she is a monster Dr. Victor created to be Frank's mate.

Tom and Elenna face dangerous challenges as they try to rescue Epos the Winged Flame, who is being held captive in the Dark Realm.

When Tom and Elenna encounter Malvel while searching for the armor that he stole, they learn that the wizard has unleashed a new wave of evil beasts against Avantia, and set off to face the first of these, the mysterious Zepha.

Tom and Elenna make their way across frozen plains in an effort to find Tartok the Ice Beast and find a way to free her from Malvel's evil spell.

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?