What is the name of the novel about the underground world under the manhole cover?

" Underneath the Legends of the Underground World " is a light novel written by the author every night. It's a derivative Doujinshi novel. The general plot of this novel is as follows: A long time ago, Earth was ruled by two races, humans and monsters. One day, the war drums shattered the peace between the two sides, and under the human's almost massacring invasion, the humans won a complete victory. The humans drove the monsters underground and set up a powerful magic barrier to trap the monsters underground at the foot of Mount Ipot. Legend had it that no human who had climbed Mount Ipot had ever returned alive. In the year 201X, a human girl climbed up Mount Ipot and found a big hole. However, she accidentally tripped on a vine and fell into the hole… ---------------------------- " Alien Prison Battlefield " was a fantasy novel written by the author, Shu Huo Liaoyuan. The general plot of this novel was: "Do you know hell?" " Actually, this hell isn't quite the same as what you imagine…" He had lost his memories of his personal identity, awakened in an extremely bizarre world, had a home that could shrink at any time, a well that could level up by absorbing souls, and fought non-stop in order to survive because he had no other choice... ---------------------------- The Catacombs Game: I Can Kill Monsters and Obtain Attributes was a novel written by the author, Three Dreams of Child's Words. The general plot of the novel was: When he descended into the Catacombs world, monsters were everywhere. The world seemed to be made up of rooms. Everyone had a shovel in their hands that was used as a key. By digging, they could reach the next Catacombs. "However, you will never know what kind of danger lies in the next Catacombs. In this dark world, sometimes a demon was not necessarily a monster…Book Group: 319590627. ---------------------------- The book," Pit ", was a modern romance novel written by the author, Xin 'er Huan Chang. The general plot of the novel was: We were all born as angels, but our life experiences would leave marks on us, and even poke holes in us. Thus, we began a long journey of self-healing. On the journey, we would meet all kinds of people and have all kinds of stories. ---------------------------- " Survival in the Catacombs: I Can Hear the Prompt " was a sci-fi novel written by Scholar Bai Cai. The general plot of the novel was: "There's a traveler's backpack in the Catacombs ahead. There might be a surprise hidden in the backpack." "There's a hungry beast in the cave on the left. Trust me, you definitely don't want to face it." " The underground cave under your feet leads straight to lava. If you want to take a hot bath in the raging fire, you can try digging." When they woke up, billions of people around the world were in sealed Catacombs. The first step was to use a shovel, and the resources were all dug up. However, not only were there resources in the Catacombs, but there were also many terrifying monsters. No one could guarantee whether they would encounter resources or ferocious beasts after they dug into the next Catacombs. However, Yu Cheng realized that he could hear the notification sound. He knew in advance what was in the next Catacombs. Therefore, while others were still struggling between life and death, struggling to survive for a bite of food. Yu Cheng, on the other hand, was already carrying a shovel and running around freely, frantically searching for resources…Book friend group: 820139048. ---------------------------- Extreme Zone was a mystery novel written entirely by the author. The general plot of the novel was: Everything started when I was six years old. What was hidden under the mine? What did I see with my own eyes? The sudden rat tide in the mine and the sudden earthquake in the Kuangqu completely changed the fate of every survivor. A mysterious veil is about to be lifted. Please follow me and experience a soul-stirring path of survival! ---------------------------- I Am the Well Dragon King of the Human World was a Xianxia-Cultivation civilization novel written by the author, Jin Xiu Hui. The general plot of this novel was: The mountain is not high, there are immortals will be famous. The water wasn't deep, and loaches were fine. Loach is a fallen dragon. It has no dragon shape, no dragon shape, and no dragon life. When the wind and clouds rose, he could also create clouds and spit fog, summon the wind and rain, reverse the changes of darkness and light, hide the meson to hide his form. He even relied on his ability to dig holes to dig through the celestial heavens and the underworld, allowing a human well to connect the four seas, the eight poles, and the heavens and the earth... ---------------------------- " 9,000 Meters Underground " was a suspense-adventure survival novel written by the author, Ant Mengmeng. The general plot of the novel was: The interior of the earth was hollow. As long as one could find some special passages, they could enter the mysterious core world. There were dense plants and pleasant climate there… ---------------------------- The Catacombs World: I am the King of the Catacombs was a fantasy novel written by the author, Cold Ronin. The general plot of the novel was: In the future world, humans would retreat to the Catacombs and build cities in the Catacombs. The Catacombs would become their last home! The threat of the other races in the Catacombs! All kinds of unbelievable phenomena happened! The search for resources was fraught with danger! How could weak humans survive? Su Xiao had transmigrated and created his own legend in the Catacombs step by step! ---------------------------- The book " Descending into the Abyss Era " was a sci-fi futuristic novel written by the author, A Bamboo Desert. The general plot of this novel was: When the development of science and technology seemed to have encountered a bottleneck, when the Nine Stars aligned again, when the Abyss descended, countless people were dragged into the Abyss. As a result, countless races hidden deep in the universe gradually emerged. The lost civilizations of Earth emerged in the Abyss one by one. The lost island Atlantis civilization, the sunken Gendaya civilization, the Mizobudaya civilization with magnetic field conversion, the flooded Muria civilization, and the strange world of light recorded in the Classic of Mountains and Seas... When one truly entered the Abyss and saw the vastness of the universe, the existence of the countless Abyss spread a legend. " Only those who walk out of the Abyss can enter the Abyss Era!