Follett returned to the Second World War era with his next two novels, "Jackdaws" (2001), a thriller about a group of women parachuted into France to destroy a vital telephone exchange – which won the Corine Literature Prize for 2003 – and "Hornet Flight" (2002), about a daring young Danish couple who escape to Britain from occupied Denmark in a rebuilt Hornet Moth biplane with vital information about German radar. "Whiteout" (2004) is a contemporary thriller about the theft of a deadly virus from a research lab.