If you don't have the key to bad luck, find a friend or thief who has the key to accompany you in.

Enter the north gate and turn left. There is a gate. At level 60, you can jump up the steps and sneak in against the wall. You don't have to kill the monster. If you are below level 60, monsters will see you.

It's easy for hunters. The baby will distract the monster, and you will rush to the door and play dead.

Go into the library and look around, and you will find NPC.

It is suggested to take a task in the camp, called: fairy tale, find a skeleton in the library to complete the task!

You can also go in from the west of doom, but you have to kill many monsters.