It wasn't hard to understand where the Land of the Fallen began. The group flew past regions rich in life that forests and packs of magical beasts until they arrived in a vast empty prairie.
The prairie was immense. It spanned as far as the group's eyes could see, and it only featured short strands of grass as forms of life. It didn't contain any magical beast according to their senses.
Large craters tainted that otherwise flat land. Traces of old battlefields filled the prairie, but the passage of time had almost covered most of them. The terrain of the Immortal Lands was so rich that even fights among rank 8 cultivators couldn't turn its regions into wastelands.
The emptiness of the prairie was a clue that Noah didn't miss. He had already confirmed the Rats' extraordinary hiding abilities, so the lack of magical beasts hinted at the presence of those creatures.