How does the underground city open the dark and thunderous ruins?

Granzhisen hidden map dark thunder ruins, recommended level 17~20. Because the monsters in the dungeon are mainly zombies with long blood, high attack and slow movement, it is also called zombie map, which is a good place to practice experience and skills. Many plots and job-changing tasks also involve this map.

Because this is a hidden map, it will not appear on the map of Grangiessen in general, but players need to complete a series of tasks to open it. Let me briefly introduce the mission strategy of opening this map.

1、

When the player reaches the level of 15, he can get the task "Strange Stone" from the NPC Xinda marked by the red circle and bring the task props to the NPC Norton (decomposition merchant) marked by the green circle to complete the task and get 1500 gold coins.

2、

Then you can receive a research task from Norton, and you will be asked to get eight cat demon nails. In the six dungeons marked by the blue circle, all the cat killers have fallen (note that white cats and poisonous cats cannot fall), and the falling rate is still good. If you are prepared before coming, you can hand in the task directly and get 1500 gold coins and a dark resistance necklace.

3、

When we return to Xinda, we can receive the last task "the remains of hidden mines". The task description is not very clear. You can go to the dark mine ruins to find his hammer (I finished it inexplicably, as if after killing the owner of the difficult dark mine ruins). After receiving the task, you can come to Granson. Well, you can see the hidden map-the remains of hidden mines.