Flight
towards LondonHarry did not think he had ever moved so fast: the
Thestral streaked over the castle, its wide wings hardly beating; the cooling
air was slapping Harry's face; eyes crewed against the rushing wind, he looked
round and saw his five fellows soaring along behind him, each of them bent as
low as possible into the neck of their Thestral to protect themselves from his
slipstream.(OotP, UK edition, p. 675)