I'm stuck! Can't get the gold I need. . I've used several boosts for the mines and got one gold nugget that way and bashed rocks til the cows came home, but only one nugget from that. I don't have any more silver runes to make more boosts. I don't have any gems, and I've already spent real money on one of these events so don't want to do that again. This is really frustrating. There have been fun events, but this one is not.