Jing Jiu said, "If I had brought the Thunder-Soul Wood with me, it would be nice to make two inclining chairs with it."
The Underworld Emperor knew that Jing Jiu had already guessed his idea, sighing, "It would be more than nice; it would be great."
"Your idea is indeed very good," said Jing Jiu.
Jing Jiu of course didn't refer to the Underworld Emperor's method of driving off the mosquitoes, but his idea of escaping from this place.
After that person acquired the Thunder-Soul Wood, he employed the method of Soul Transfer of the Underworld to attach his soul to a devil man of the Underworld to successfully escape from the Sword Jail.
It was no doubt that the Underworld Emperor had a much better understanding of the method of Soul Transfer; if he had obtained the Thunder-Soul Wood, he would probably transfer his soul to any of the prisoners at the second level to escape.