The Last Bid Wins

You are all seated around a table where a live auction has started for the one thing every single one of you desperately needs, and your bids aren't money — they're secrets, favors, and pieces of your future. Each round the price climbs, one of you must drop out and reveal why you wanted it, and the auctioneer closes the floor at midnight. Outlast the others, or confess what you were willing to trade and walk away with nothing.