Of course!

You can't help but focus on this strangely hypnotic humming. The noise seemed to be coming from one of the side rooms, leading you to slowly walk towards it.

You deduce that the noise is coming from a side door with a sign on reading: 'Library'. You lean against the door and listen. Whoever, or whatever, was making that noise, it was certainly coming from inside there.

You press the handle down and raise an eyebrow. The humming seemed to have stopped completely, not being able to see whoever was making it. You can't help but feel a chill run down your back as you step through the doorway, entering the library.