Dear Christopher, My mother married a German count, which is exactly as pretentious as it sounds. We’re moving to Frankfurt and that means a boarding school with new rules and lesson plans where I’m already going to be behind. I hope you don’t mind that I’m writing you, because I know we’re not technically related anymore. PS. Who’s going to dive in and rescue me on spring break? Dear Harper, Thank you for writing to me, even if we aren’t related anymore. If it’s any consolation, you feel as much a sister to me as you did before. Which is to say, not much. I’m sorry to hear about the new boarding school. I hope they have lots of paint. PS. Don’t sit on the rail at midnight, and whatever you do, don’t die. Dear Christopher, Germany is cold and guess what? They speak German. It’s hard