The PC's need to get some information from an information broker in a Horror game. (Think of it as an information demon.) The stakes are dire but not deadly. I want some way for them to compete/wager/gamble to get what they want, but asking the player to "roll versus your poker skill" seems vapid.
I need a mechanic with a clear winner and loser, that allows for a build-up of tension without being silly, and would fit a dark horror setting. It doesn't have to be a game, or cards.
Bonus points if there is a way for the demon or player to cheat.