Hax was in deep thoughts as he stared at the map.
The more he looked at it, the more he felt distressed. The Boiling Volcano was a perfect fortress. It was surrounded by a thick forest that had a large river and there were even gaping crevices that could only be crossed with ropes and lightweight equipment. This meant that his Prime Soldiers couldn't cross this crevice unless they'd willing to take the risk of falling into the depth.
It was like designed to hold a siege. The forest alone made it hard enough to deploy a large army to strike the sect. The steep volcano. The hot temperature. Lava. Beast. And the placement of the temples left no blind spot to take advantage of.
Either it was a coincidence or the sect master was a genius to build this sect.