Chapter 1661

There had been many stubborn and fearless people like Stefan who had wanted to enter the cave, but they had died before they could get to the end. The only person who had successfully passed through that cave was Stefan's guide, and he knew how dangerous that cave was. He swore never to go close to it anymore.

Stefan gestured to show that he was going to enter the cave, then swam into it.

"Come back! Come back!" The guide got so anxious that he wanted to take off the mouthpiece of his oxygen tank.

Unfortunately, Stefan had made up his mind, and swam deeper into the cave. As he passed the heart-shaped cave entrance, Stefan felt like he had entered another world. It was pitch black without any light, and he could feel seagrass against his legs, almost tangling them.

There was a gigantic cliff section beside him. He couldn't see the top or the bottom, and people with weak hearts would surely be frightened out of their wits. Heart pounding in his chest, Stefan looked around in the dar