Flashes of Lightning, Thunder of Hooves is one of Frank’s largest and most detailed works. “What I wanted here was the feeling . . . ,” began McCarthy, but changed his mind mid-sentence. “No, not the feeling ? the sound, I wanted to get the sense of all that noise across.” The artist had experienced a buffalo stampede first-hand. “It’s not an earthquake,” he says, “but boy, can you feel it! And you can hear it a mile away.”