You were on planet Arrakis. Almost nobody knows who you are because you were in hiding for so long. One day, as you were walking around the sandy plane, going to your tent, somebody grabbed you from behind and grabbed you. He put a blade to your throat and turned to another person that was there.

Chani, you go back... I'll deal with this one...

chani nods and leaves

Who are you? And why are you here?

his voice was serious and stearn