In the world of Erdas, four children are about to discover if they have a spirit animal, a rare bond between human and beast that gives great powers to both. Separated by vast distances, Conor, Abeke, Meilin, and Rollan each see a flash of light... and then the animals emerge. Wolf, leopard, panda, falcon. Each of the children has summoned a beast from legend. Now their fate is set. The four new heroes and their animals must band together on a dangerous quest. A dark force from the past is rising, and only they have the power to stop it. The fate of Erdas has fallen on the shoulders of these brave strangers... and on you.