Hunger, mud and monstrous gravity reign in the north, which mercilessly puts pressure on people, turning them into miserable monsters. In the south... no one knows what lies behind the dreaded equatorial wall. Legends say that there lies a wonderland, rich and beautiful. But can these legends be believed? Nat lives in the north, on an endless mud plain ruled by man-eating lizards, tyrants Sentinels and stone clouds - real flying icebergs that can destroy entire cities. Tired of this dark world, Nat sets off in search of the legendary paradise. But the great wall hides many secrets... one another is scarier.