As they started walking southward towards the centre, the terrain got more and more unforgiving as they continued. While before, the woods had been dense, now people had to walk almost single-file to be able to make a proper way through the rainforest. Every so often, big insects buzzed by, dragonflies the size of one's forearm hovering over the ground to signify the presence of a stream nearby. In the trees, the screeching of bats could be heard, and from all around the singing of crickets surrounded them. While this looked for a large part like a rainforest on Earth, the animals were all far far bigger than Earth animals. Still, nothing especially dangerous was happening, and since they knew where to go, they arrived at the #northern-cave-structure without too much hassle.