click to enlarge The Lantern Key
You come upon a faintly glowing key and go to pick it up. "Been looking all over for that key! Now if you don't mind..." This person looks like bad news but maybe it's not good to be judgy.
Lantern Key 
Quest
Quest Lantern Key+
Unplayable.
Unlocks a special event in the next Act.
Choices & Outcomes
Keep the Key
The stranger looks at you menacingly. It seems like only one of you is making it out of here with the key.
Fight
Outcome Fight to obtain the Key.
Return the Key
Outcome Gain 100 Gold.
Additional Outcomes
Done
The stranger thanks you for your help, and rewards you handsomely.