 In #7 Derby Day (Ashleigh series), it is said that Rhoda Kat is the first female jockey to win the Kentucky Derby.However, in the original series, Jilly Gordon clearly is.When the plague hits Ashleigh's family, various horses who survive or are sold before the first book, die (Midnight Wanderer, for example, who is put to sleep in the book, 'Goodbye Midnight Wanderer', apparently dies of the mysterious plague, rather than from the accident.)