Four fully grown, enormous, vicious-looking dragons were rearing onto their hind legs inside an enclosure fenced with thick planks of wood, roaring and snorting - torrents of fire were shooting into the dark sky from their open, fanged mouths, fifty feet above the ground on their outstretched necks. There was a silvery-blue one with long, pointed horns, snapping and snarling at the wizards on the ground; a smooth-scaled green one, which was writhing and stamping with all its might; a red one with an odd fringe of fine gold spikes around its face, which was shooting mushroom-shaped fire clouds into the air; and a gigantic black one, more lizard-hike than the others, which was nearest to them.
At least thirty wizards, seven or eight to each dragon, were attempting to control them, pulling on the chains connected to heavy leather straps around their necks and legs. Mesmerized, Harry looked up, high above him, and saw the eyes of the black dragon, with vertical pupils like a cat's, bulging with either fear or rage, he couldn't tell which.…It was making a horrible noise, a yowling, screeching scream.…