Voldemort turned and sighed, Little Jamie had decided to save the woman instead of pursue Him. He still hadn't learned the rules of the game. Stupid, Gryffindor.
If His prey wouldn't abide by the rules, then neither would the predator.
Voldemort dropped the glamour and shroud charms and whispered into a passerby's ear: "Lord Voldemort is here." He quirked an eyebrow at the wizard's look of fear and confusion, and then laughed as the bloke ran off sweating with fear.
A few wandless spells later and several crimson snakes appeared in the air and flew into the stands before exploding and reigning fire down onto the crowds.