The horse itself carries decent bloodlines. Caelum is by Minzaal, out of a Kodiac mare — a cross that blends proven racehorses on both sides. At two years old, the horse is at the age when many first-time runners show genuine promise or reveal that racing simply isn't for them. There's no way to know which until the gates open. That uncertainty is part of what makes a debut interesting: Kevin Ryan clearly thinks this horse is ready, but the racecourse will have the final word.