Genèse

Trapped by the Emperor and by Entropia, Matt, Tobias, Amber and theirs must flee and rally support in unknown lands to capture the last Heart of the Earth before it is destroyed. But the subterranean world which they discover is not only swarming with dangers. It contains incredible revelations. The war is near, the sacrifices necessary. The ultimate pursuit is declared. The end of the Autre-Monde delivers all of its secrets.