1.

You wake up in a room, finding yourself lying on the floor. This is not where you went to bed last night. What is this place? Is this a dream within a dream?
You looked around and found four doors, one in each direction. One of the door could only be opened with the proper key code.

There is a book labeled as "Emergency Override Manual" next to the door, maybe it contains the key code?

You opened the book and started reading. This is a novel rather than the overriding manual as labeled.

One of the sentences was strangely highlighted: "All civilizations consider themselves invulnerable; history warns us that none is."

As you leave the room, you heard someone whispered "Remember the shape of the rooms containing active GAs