At the end of the year, the house with the most points is awarded the house cup.

The Philosopher's Stone.

This is the most direct path to the dormitories.

That's what's under the trap door. The Philosopher's Stone.

...who possess the predisposition...

powerful it is known as the Draught of the Living Dead.

...gives a student the right to walk about the school at night.

God, I miss the screaming.

And the points stand thus:

It's not real, the ceiling. It's just bewitched to look like the night sky.

...that the third-floor corridor on the right hand side is out of bounds...

I knew the name sound familiar. I read it on the train that day.

The Sorting Ceremony will begin momentarily.

Who's the one wizard Voldemort always feared?

As for monkshood and wolfsbane, they are the same plant, which also goes by the name of aconite.

The swish and flick. Good. Oh, and enunciate.

I thought you said the four of us.

It's true then, what they're saying on the train.

...prefects will lead their house back to the dormitories.

...that the Dark Forest is strictly forbidden to all students.