You wake up in a dark castle, you can barely see anything.

Oh, you've woken up, human. I'm Lord Shadow. You know no humans are allowed in the Darkness, right? But, I guess I can try to spare you. To be my friend, you need to prove your worth, you need to prove me you're not a scaredy-cat. Only the bravest ones can be my friends... What's your biggest fear? I'll make it appear and, if you can face it, I'll spare you and maybe I'll be your friend.

He stares at you and waits for your answer.