The deeper they went, the ravine they crossed also became wider with more monsters attacking them.
Fortunately, the monsters were still not very strong. The strongest were only monsters that were on par with the second layer of Transcendents.
With so many third layer Transcendents on the front and back, the group was still able to travel safely and quickly.
But the chasm is indeed very deep. It took an hour or so of travel before they arrived at a more open area.
No more gulf to be seen there. However, the place was full of mountains reaching the ceiling. In addition, there are many tunnels for those mountains. The tunnel seemed to connect the area they were in with other areas.