Alethea, Kayla and Rustus are the only ones standing in the way of the evil Professor Penn, who is raising an army of beasts. Desperate to protect their home, they split up to find a way to defeat the professor. Kayla tries to uncover Penn’s plans in the ruthless Southlands, as Rustus hunts for prophecies within the hidden Crystal Caves. Meanwhile, Alethea must journey to a new realm to unite the people against the danger ahead. But the island is changing: plants and beasts are dying, volcanoes are erupting and waterways are drying up. Could it all be linked? Alethea, Kayla and Rustus will have to trust the people and beasts they meet to help them on their way. And listen to the whispers on the wind that warn of an ancient legend ready to rise.