"Guardian," Eva intones, face backlit with the flickering light of holiday candles. "Listen now to my tale of vengeance and woe!"
She waggles her outspread fingers, making the shadows around her dance. But her tone is serious.
"I arranged Mystery Grab Bags to give everyone an exciting and meaningful Festival of the Lost. And now some of them have gone missing! I suspect someone hungry, lurking around in a basement… if you catch my DRIFT."
"I see you're ready for the Festival with a very official mask of your own. In the spirit of the season, I'd appreciate if you found the culprit and gave them a good scare."
Eva leans in to whisper conspiratorially to you. "Don't tell the other Guardians, but if you help me out, you can keep one of the bags for yourself."