The Burrow Becomes the New Headquarters for the Order of the Phoenix

PAGES: 90-91

Mr. Weasley explains that the Burrow has replaced Grimmauld Place as the headquarters for the Order of the Phoenix due to the weakening of the Fidelius Charm after Dumbledore's death. He also mentions that Alastor Moody placed curses on Grimmauld Place to prevent Snape from revealing its location.