So it's true, then! Petunia Dursley has come to Hog - New York.
Summary: Petunia Dursley is on an airplane bound for New York, and Lily Potter is about to pull her hair out. Where characters are: Order base in NYC. Set-up: Lily wrote in her journal defending Lockhart's honor after he was awarded "most eligible (terrorist) bachelor". Other: The ensuing comments quickly spiral out of control when Mars has a pleasant conversation with Petunia, Remus unknowingly informs her about the war, and Petunia resolves to travel to New York. With Mars picking her up from the airport the next morning. Mars sends Lily a letter, and they agree to meet. Further conclusion:The Order is terrified of Petunia.