Here is another installment of exTRAPaganza, our Thursday over-the-top trap series.
This large stone has as depression in it, and claims that, once full, all items in it turn to gold. Once full, everything turns to gold, molten gold. The stone then collapses into the ground, taking all within 30′ with it into a pool of molten gold that happens to be there. After a few days, the ground is mended and the stone reappears.