"What else is here?"
Eren said to himself as he looked around the underground hall lit up by yooperlite stones. He then zeroed in on a set of metal doors that seemed to be embedded in one side of the hall.
The two giant doors were tightly shut and would have gone unnoticed if the hall wasn't well lit. These doors were made up of mystic wood framed with strange metal alloys that Eren couldn't recognize.
There were two pillars on either side of these two doors. There were various patterns on the surface of the doors that looked oddly like rudimentary runic designs.
Eren observed the doors with keen interest before approaching them carelessly. He found out that there were a few two depressions or slots embedded in each door, which looked like they were supposed to accommodate something.
"Hm? Wait a minute. Isn't this….?"
