Right now the bottom of the underground was in panic, there was fighting, and there was blood everywhere. When the king dies, it's subjects that have been suppressed tend to go wild, no matter the race. That is exactly what happened here. With no king, they would eventually kill each and every single one until the strongest survives.
But Kyle had other plans. It said that he now had a chance of choosing the next worm king and becoming a controlling lord of the faction. There was no way that Kyle passes by this chance.
While the chaos was going on all around him, one same worm was still drinking water and seemed to be already bigger than before. There were at least 10 new corpses of worms that seemed to attack this worm lying around.
It was not an ordinary worm, and Kyle could feel it, plus his life attitude and outlook really resonated with Kyle.