You light all of the torches in the room, expending two of your own. Sure enough, those outlines on the walls disappear to reveal passageways to other rooms. Upon lighting these torches, the chandelier dims out, how strange.
Oh a heads up, one should mark their
MAP so that they don't get lost while exploring.

"Perhaps it wasn't a good idea to open all of the doors, you could be attacked at all sides..."
Nevertheless, where to adventurer?