One wish

"..."

"Hey!" you shout, staring into the blinding light.

"You're John."

"Yes! And who are you?"

"Nigel told me about you."

This time you don't speak, frustrated that the voice is ignoring your questions.

"He said he liked you, so he left everything to you."

"Not everything, apparently," you mumble.

"Everything he could leave. This place... is mine. But I can no longer stay because you've found me. When you wake, Nigel and I will be gone."

"Woah, woah, woah! When I wake? Are you going to knock me out?" You raise your hands in defense, ready to put up a fight, but the voice doesn't appear to be moving in on you.

"... One wish."

"What?!"

"One wish. I'll allow you one wish. State it."

Now, you're confused. "Are you a... genie?"

"..."

"What can I wish for? Is that your agreement with Nigel? Did you grant him a wish?"

"I did many things for Nigel. I even offered to heal him, but he refused. He insisted that life should take its course."

You gulp, considering your situation. On one hand, you're scared of what this mysterious voice can do to you and confused about what it is, but on the other hand, the possibility of a wish intrigues you.

"Can I ask questions before the wish?" you say.

"You can."

"Can I ask to stay the same age forever and be immortal?"

"You can."

"But I could still die, right?"

"Yes. If harm was done to your body, you would die."

"Can you make me invincible to harm too?"

"... No. Not without taking away your humanity. Is that what you want?"

"Uh, no. I still want to be human, of course. What's the point of living forever if I can't enjoy it? Okay. I want eternal youth."

"Okay. Good bye John." Then, before you can say anything or react, the blinding light gets even more intense and you lose consciousness.