Umm... What's supposed to happen? (Library Question)

I’m playing through the Library and I actually Enjoy it this time around unlike the original CE anyway I’m on the level below the one with the Terminal. Spark went to the end of the Hall and went into a hole… Nothing happened (No Flood spawn either) I literally have the game on as it type this & I’m just standing in the middle of the room.

Keep moving forward…

> Keep moving forward…

It seems like a dead end… no doors

Facedesk I just noticed there’s a path underground >_>

Oh youre there. I thought you were farther along…