"You have plenty to do trying to rule your underground kingdom."

"They can chain me next to who they like, but I'm not building any filthy underground kingdom for a talking statue!"

I will trap him down inside his own underground kingdom, and within a season he will either be dead or eating from my paw.

Is there no place that could be the entrance to an underground kingdom?

Over the years, I've experienced other permutations of the underground wild kingdom.

This underground kingdom seemed even darker than the level above, save for a distant flickering glow.

Only that it is an underground kingdom in the north.

Ladies and gentlemen, I beg you to listen to the voices that are coming from the underground kingdom of children who have been killed.

She didn't want to leave the secret underground kingdom of the Silo Rascals.

It filled the Ankh, which slurped once again through its underground kingdom.