Twelfth Floor

I entered inside, where thirty-some people were already in front of the black steles, trying to solve the runic equations.

I looked around before appearing in front of the stele, in the circle surrounding it.

Buzz!

A moment later, a buzzing sound rang out and a runic equation materialized in white letters.

I picked up the pen and begin to solve it.

The runic equation is not difficult. It is so easy that I could solve it in my sleep. 

I did it in three seconds. If my hand would have moved faster, I wouldn't even have needed that much of the time.

Buzz!

The stele buzzed and with it, the circle. 

A moment after that, darkness appeared in front of me, but it lasted only a moment before I found myself in the same place.