The Tower Master walked through the maze-like structure without getting lost, as if knowing exactly which passage to take.
There were even times when he came to a dead end. He used the same key to open a passage in the obstructing wall.
After walking for over twenty minutes, he finally reached his destination. He ended up in a large hall with a coffin placed in the middle.
Looking at all the complicated paths that had to be taken to reach the right destination, Eren felt extremely glad that he hadn't killed the Tower Master when he had the opportunity.
Even if he had a key and the whereabouts of his brother, he never would've been able to find his way through the maze. It was thanks to the Tower Master, who was leading the way, that he managed to reach the place.
