“How could that horse be a unicorn?” Bess asked. “Unicorns have horns on their heads.” “Look at the huge headdress the horse is wearing,” Nancy pointed out. “His horn could be hidden underneath.” “If it is Sparkle,” George said, tilting her head to study the horse, “how did the mayor get him?” “Seth said he was helping Mayor Strong at the time Sparkle went missing,” Nancy said. “Maybe he was helping the mayor get Sparkle!” “But why would Mayor Strong want a unicorn instead of a horse?” Bess asked. “Why not?” George said. “If unicorns jump superhigh, maybe they can run superfast, too!” Seth led Mayor Strong and the mystery horse onto the jousting field. “If we could only look under that headdress to see if there’s a horn,” Nancy said softly. Three men wearing blue velvet tunics and tights walked to the middle of the field. They blew loudly into long skinny trumpets. “Hear ye, hear ye, good people!” one man announced. “Challenging Sir Mayor the Strong in the royal joust shall be Sir Bragalot the Bold!”