When Mimi and Papa get invited to the most famous horse race in the world, Grant and Christina tag along. They meet up with a couple of horsy friends and start to have some fun! But then, mysterious things begin to happen: first a horse disappears, then two jockeys! The next thing you know, the kids are finding clues that may help them solve the mystery and save the race! But it's a two-minute race to the finish line! Come along and help them! LOOK what's in this mystery - people, places, history, and more! Kentucky Derby history, facts, and traditions • Horses and jockeys • Great Steamboat Race on the Ohio River history and facts • Triple Crown races • Ohio River and Falls history and facts • Riding clothes facts • How to Ride a Horse • Pony breeds • Difference between Horse and Pony • Pegasus Parade history • Churchill Downs • Eva Bandman Park • Kentucky Derby Museum • Falls of the Ohio Interpretive Center.