Lego Harry Potter library first room student in peril I killed them with advada kadavra and he is standing there laughing then falling down What do do?

It sounds like you're describing a scene from the Lego Harry Potter video games! It's definitely a humorous situation, even if a bit dark. Here's how you could approach it:

* Embrace the absurdity: Lego games are known for their wacky humor. Instead of taking it seriously, laugh along with the falling student! Maybe give him a thumbs up as he collapses.

* Look for a solution: Lego games often have puzzles or challenges to solve. The falling student could be part of a trick or a clue. Look around the room for anything out of place or that might interact with the student.

* Think outside the box: Maybe there's a way to "revive" the student, even though he's already fallen. Could you use a potion, a magic spell, or even a Lego brick to bring him back to life?

* Don't be afraid to experiment: The beauty of Lego games is their forgiving nature. Try different things, see what happens, and enjoy the unexpected outcomes.

Remember, Lego games are all about fun and creativity. Don't worry too much about the "logic" of the situation, just go with the flow and have a good laugh!