Alex arrived on the 19th floor again.
It took him exactly 8 days to get here without stopping. The upper floors were faster to get through, but the lower floors took way too long because of how many people there were.
It took half a day most of the time just for his turn to enter the rooms.
He followed the same path as before as that was easier. He had some idea about what the other rooms had, but going there would be too risky as he couldn't necessarily win in those rooms.
Surprisingly, he got to skip floors 5, 10, and 15 as the things he had to do on that floor were a one-time task. The spirit itself explained that to him.
Now that he had gone through all the lower floors and was back on the one he had first had to go back from, he continued on his journey.
He knew what the next room was, so he entered it without hesitation.
This was a room where they tested one's reflex.