The wit sharpening potion effect on the girl was working for the girl. Now that the Hogwartian knew what she had to do. She got right to it in haste. That was good time was ticking away.

Tick tock! Tick tock!

The girl was prepared wasn’t she? With the the supersensory charm and the shield. Perhaps she thought she was heading into some sort of battle. Only time would tell, if she was prepping for what was to come or if the potion had made her overthink this preparations.

One without the supersensory charm would certainly need to use the lumos charm. Maybe she should go on and use it too. Follow straight on and you will end up where you are suppose to be. There is a door at the end of the passageway.