Moondancer was a slender, beautiful young she-dragon of pale green, her horns, crest, and wingbones the color of pearl, and very quick both in the air and on the ground. Hatched on Dragonstone, she was not yet large enough to carry the thirteen-year-old Lady Baela Targaryen when the Dance of the Dragons began in 129 AC, but within the year Baela was riding her daily to every corner of the island and across to Driftmark, though the dragon was still no bigger than a warhorse and weighed less.
When Dragonstone was betrayed to King Aegon II in 130 AC, Baela broke from her chambers, loosed Moondancer's chains, and rose to meet Sunfyre as the king came in to land in the castle yard. The smaller dragon was far nimbler than the half-crippled Sunfyre and tore at his back and ruined wing until a blast of his flame took her full in the eyes; blinded, she flew into him and brought them both down together. On the ground her speed counted for nothing against his weight, and Sunfyre killed and devoured her, but the wounds she gave him were mortal, and he died before the year was out.