"Fire!"
Boulders are getting fired into the crater and it doesn't matter what's inside the crater or the hole that Letrax came from, what matters the most is that they need to keep firing while they can. Nobody knows what's inside the hole but as long as they use the boulders, it's enough to kill them.
The screeching sounds are stopping, and Kingstar tilts his head toward the ground from the top of the wall. He hears a rumbling sound is coming from below the sand, and he immediately puts his hands around his mouth.
"Everyone! Get out of the sand! Now!"