"These gaps in the dust should be easy enough to deal with. You know concrete, right? The sand above is falling down now, and it's definitely too late for us to mix anything. But did you see it? The huge pit Senior Tianhe just blasted is still there, and it extends across the entire entrance. All we need to do is pour an adhesive liquid into this pit. Once the sand and rocks come rolling down from halfway up the mountain, the bonding will be completed along with them. Wouldn't that solve the possibility of gaps being left in the entrance?" I said with a smile.
"That makes some sense, but this place has been dry for who knows how many thousands of years. Where are you going to find adhesive liquid? Isn't that just wishful thinking?" Shandao sneered.
"That won't do. None of us can actually make them fuse, so this would just be unnecessary effort." Tianhe spoke as well, but he clearly didn't believe I would cause trouble without having something up my sleeve. He asked, "Or are you saying you've already found a way to make this solution, young friend?"
"Heh heh. The first method is this: the sand and gravel here are all crystals. Any ordinary material has already been utterly destroyed by the aura of the Heaven of Proving the Dao. So we only need to fill the huge pit with these crystals beforehand. Then, if everyone lends their strength and uses flames to melt them, once they turn into a liquid, the rocks from the mountain will come down, the liquid will cool, and the sand and stones will solidify together. Wouldn't that do it? The second method is a little worse. If we can't melt the crystals here, we'll have to find the