The two quickly flickered. Before the others could catch up, they erased all the red marks, and they also went to a cave entrance. They saw the red marks of the cave entrance, and they quickly flashed into it. In the middle of the cave, there is a stone pool full of crystal clear water. The water drops on the upside down stalagmites fall on it, making a sound of tick by tick.

and in the middle of the stone pool, there is a large, depressed stone block. On the top of the stone sits, there are crystal clear stones. In the slit of the stone, there are some milky...