Sold out at Publisher

On a research trip, I was traveling with several Indians on horseback across the rolling plains of Montana, says Howard Terpning. Suddenly, a wind came up and the sky turned an ominous blue black. A white cloud developed and moved across the horizon from left to right, billowing into a formation that seemed to grow up from the ground amid loud claps of thunder. I know that the incident had to be recorded and Thunder Speaks is the result.