The water flooded Chen Mian's body, but it soon fell to the bottom, about two meters deep, and a thick layer of silt had accumulated at the bottom of the pool, and dense aquatic plants were coiled at the bottom.

There are many of these aquatic plants, but the stems and leaves are very short, like moss growing on the bottom of water.

A few small two-finger-long fish swam past Chen Mian, their eyes cloudy and unable to see.

Chen Miandian's light technique can continue to glow for five hours, this puddle is not big, and now you should be able to see a little light in the water, right, "Did it fall into the mud?" ”

She swam to the place where the stone had fallen, and under the effect of the fish's boots, Chen Mian swam through the water very efficiently, and soon she found the trace of one of the stones.

There was a deep hole at the bottom of the pool, and one of the stones fell not far from the hole, and it happened to be stuck by a stone.

The hole at the bottom of the pool is large enough for an adult to swim into, and it is obvious that the cave is bent not far inside, and in that direction is the stone wall of the cave outside.

Chen Mian didn't rush in, but continued to check the rest of the bottom of the pool to see if there was anything else.

If the hole at the bottom of the pool really leads to other places, it is difficult to say whether she will be able to return here in a short time, and it is better to explore this place clearly, without worries.

Luckily, there was no other passage in the waterhole except for this hole, and there was not even a single remnant of human belongings.

Chen Mian then swam to the hole at the bottom of the pool.

The cave begins at about 60 degrees downward, then leads to a slightly wider passage, then extends straight ahead, and then diagonally upwards.

The second stone that Chen Mian threw down before was not far behind the first corner.

The passage was not long, in just one minute, Chen Mian came out of the passage, and was caught off guard by the turbulent water flow downstream for a distance, and then stabilized his body and swam against the water, trying to surface.

It took a lot of effort for Chen Mian to stick his head out of the water, this is an underground river, the exit of the passage at the bottom of the waterhole before is just at the bottom of the underground river, and the water in the waterhole should also flow from here.

There are stone walls on both sides of the river, and the top is only about two meters from the highest point of the river, so there is not enough space to fly with the witch's flying broomstick.

The sight of the place is only a few dozen meters upstream, and on the left side of the river there is a foothold that is exposed to the water, and a faint green light appears.

Chen Mian cautiously swam to the left, and with the help of the edge stone wall, he swam a few meters upstream, pulling an iron chain hanging from the stone wall.

The chain hung down just above the mouth of the river bottom, and was only slightly submerged in water, and the edges were clearly rusted and broken.

Perhaps at first the chain was very long, hanging directly to the mouth of the channel at the bottom of the river, and those who came out of it could pull the chain without being washed downstream.

But now the lower half of the section has long been unknown where it went, fortunately she put on the boots like a fish, otherwise even if there is a water-repellent pearl so that she will not drown, she will be washed down by the water I don't know how far, I guess I won't find this chain.

The years have left a deep trace on this iron chain, Chen Mian gently tugged, and the remaining half of the iron chain was broken by two-thirds, fortunately she grabbed the stone wall with her other hand, otherwise this time it might be washed down by the water for a distance.

She gave up on the fragile chain and pulled out a hemp rope from the storage space, which was quickly extended by the spell activation rope, wrapping a few twists and knots around the raised stone where the chain was attached.

Chen Mian dragged the rope and climbed onto this small platform more than one meter high on the surface of the water.

The place looked like a cross-section of a hole made by a rat, apparently carved out by hand, leading to a large platform with a faint green glow a few dozen meters away.

Now Chen Mian can only lie down here, and he can roll into the underground river with a slight turnover, which is only a little easier to move forward than in the turbulent river.

She put away the hemp rope, took out the ratskin cloak with great difficulty, and put it on, and after turning into a little mouse, it was much more spacious.

But she didn't rush to see what the green light was.

It is easy to guess from the remnants of the iron chain and the narrow depression that has been artificially dug in the stone wall that people used to swim out of the hole at the bottom of the river, drag the chain to climb here, and then move on their stomachs to the large platform with a faint green light dozens of meters upstream.

The mouse's paw touched the stone under him, and it was rounded a lot.

Thinking about this mission, the destination is likely to be not far ahead, but what is that thing that is still glowing green hundreds of years later? Maybe it's not the green light, but the "green flame" in the mission name?

Xiao Hei was very close to her now, and Chen Mian was here waiting for Xiao Hei while observing the situation in the distance.

Soon Chen Mian sensed that Xiao Hei had reached the top of her head and was descending rapidly, "Xiao Hei, help me go and see what that green thing is?" Chen Mian said.

After a while, Xiao Hei's voice sounded in Chen Mian's heart.

"It's a lamp, an oil lamp, but it doesn't look like there's oil, but it has a green flame. There was also a stone gate, and there was something preventing me from passing through the spirit realm, but it wasn't as big as the dungeon on the Blue Star. ”

Xiao Hei quickly circled around the place where he couldn't get through, and probably explained the situation to Chen Mian.

"What about the stone platform? Is there anything else? ”

"There's some rotting wood slag, and it looks like there used to be a log cabin here."

Chen Mian was a little relieved, but there was no lamp oil, and the oil lamp that was still burning with green flames hundreds of years later made Chen Mian a little vigilant.

The monster that the quest requires to deal with is the Burning Skull, and the mission name is the Green Flame Skull, which means that the flame on the Burning Skull is likely to be green, and I don't know if it has anything to do with the green oil lamp.

Chen Mian had an idea, and transmitted the voice again, "Come back and get a little water, and try to see if you can extinguish it." ”

Several water bags filled with water appeared in front of her, and then suddenly disappeared, and Xiao Hei took it to its natal spirit realm.

"No, the water won't be extinguished."

"I'll go back to the annex space first and prepare something, you can help me pay attention to the situation outside the stone gate."

Chen Mian returned to the attached space and began to make the holy water of blessing, the fire that could not be extinguished by the water must be unusual, and it was a very strange green fire, she wanted to see if the holy water of blessing that had a miraculous effect on evil creatures could extinguish it.

If it can't be extinguished, it means that this is an everlasting lamp made by an unknown method, but it is just a magic prop, and if it is extinguished, it is not a good thing nine times out of ten, and it may even have something to do with the Burning Skull.

Blessed Holy Water is a level 1 priest spell, each use consumes 5 points of priest professional mana, Chen Mian takes dozens of minutes to recover the mana for every 26 bottles of holy water, and after a few hours, one hundred and thirty bottles of holy water are completed.

After recovering his mana again, Chen Mian appeared by the underground river wearing a ratskin cloak.