HEN A FLASH flood sent a 1.5m wave sweeping through Mitchelton Gallery of Aboriginal Art last autumn, curator Adam Knight helicoptered in to rescue what he could. The subterranean gallery—part of a luxury resort in the middle of a Victoria winery that’s a 90-minute drive north of Melbourne— is no glorified gift shop, but rather the largest commercial space in Australia devoted to work by First Nations artists. “I had to go myself—I knew what the masterpieces were,” he says. “There were moments when I thought I was going to drown while trying to save some of
