"People in racing have to be dreamers," says Jim Bolus in the beginning of his fourth chronicle of the Kentucky Derby. The Derby itself has been dreamlike in its history. After nearly fading into oblivion at the turn of the century, the Kentucky Derby has grown into a national cultural institution and the premier annual horse race in America, if not the world.The stories about this great race and its participants have grown through the years. They have evolved into both heroic epics and much-maligned tragedies. The author relates the triumphant tale of Regret, the first filly to win the Derby on what was her very first start of the year. He also tells of Riley, who, in spite of a muddy track, won the first Kentucky Derby held in the rain.Some of the shattered Derby dreams are described as well. Included is the story of the tumultuous feud between horse owner Jim T. Williams and jockey Roscoe Troxler, whom Williams accused of throwing the 1911 race.The author entertains and informs with his Kentucky Derby tales of the dreams realized and the dreams never achieved at Churchill Downs.