Qiao Suinian dared not delay and quickly continued forward. He now only hoped that there was an exit leading to the outside world underground.

After advancing several kilometers, the underground was still completely silent, with only the sound of bats flapping their wings.

On their way forward, the two discovered many more Abyss Corpse Clan members embedded in the stone walls by the roadside. Some were on the left and some on the right, and each one was asleep. Their sheer number made Qiao Suinian's scalp tingle.

Even if he were to fully recover from his injuries, it would be a pipe dream to force his way into this place.

How could such a powerful Abyss Corpse Clan place their lair underground in Kyoto? What is their purpose? Qiao Suinian was completely baffled.

As they moved forward, the surrounding air grew thinner, but then a light suddenly appeared ahead.

Qiao Suinian's face lit up with joy. The presence of light meant that there might be an exit ahead, since the Abyss Corpse Clan would never like light.

Just when Qiao Suinian thought he could escape with his life.

"Thump!"

A dull thud sounded, and Qiao Suinian felt as if someone had picked up a large iron hammer and smashed it hard into his chest, causing him to instantly clutch his left chest and kneel on the ground.

Qiao Suinian opened her mouth wide, but couldn't make a sound.

"Suinian, what's wrong?" Han Yueling didn't know what had happened and quickly asked with concern. But the next second, she felt her heart suddenly clench, as if it had been clamped by a large iron clamp. Han Yueling's fair forehead was covered with cold sweat.

After a while, the two finally recovered, though their faces were still a little pale.

"What was that muffled sound? I still feel a bit uneasy!" Han Yueling said, still a little scared.

"I don't know, I also feel very uncomfortable in my heart! It's terrifying, it feels like my heart is going to jump right out of my chest!" Qiao Suinian said, rubbing her chest.

"..." Han Yueling was silent for a while: "Can't you rub your own?"