It's completely dark in here. Your only hint as to your whereabouts is the deep, dark voice that says:
"Answer the riddle I give to you
And you'll see where the light shines through
It's a little word I'm thinking about
With a letter repeated and one letter out
Of your following choices: N E T, L I S
Be correct and you might learn the secret to this quest."
You angrily tell the whatever-it-is that you don't speak Spanish.
"Okay, okay, in simpler terms, you have six letters: N, E, T, L, I, and S. Spell me the word I'm thinking of using those.
I'll be generous and give you six tries."