"I’m just a lone wolf," says Jim Dine. Dinner is being prepared at his house in the Blue Mountain foothills of Walla Walla, Washington, which he shares with his wife, the photographer Diana Michener. Other guests include two printmakers, Ruth Lingen from New York and Julia D’Amaro from California, along with Jim’s assistant and wife, Jason and Crista Treffry. We sit down to a delicious meal of roast chicken, tomato and onion salad -- onions being Walla Walla’s most famous crop -- and Dine’s own Jerusalem artichoke puree.