It was already dark when Ethan came out of the library, he stood in front of the library for a while before walking back to his dorm, he was really tired and sleepy so he quickly walked back.
Ethan walked past the research department and the door was opened, when they showed them the research department building, the students weren't told what was being researched since it was secret.
'Who would leave the door to a room like this opened'
(I wonder what they are doing in there, take a peek let's see)
'Yeah, don't you think it might be a trap for someone like me'
(The door is opened, how is that a trap, I'm sure they didn't expect any of the students to be here, quick take a peek)
Ethan walked towards the door as quietly as possible and took a peek inside the room, it was a small room that had a table in the center and nothing else, but another door was at the other end and it was also opened.