Ginny Blackstone thought that the biggest adventure of her life was behind her. She spent last summer traveling around Europe following the tasks her aunt Peg laid out in a series of letters before she died. When someone stole Ginny's backpack—and the last little blue envelope inside—she resigned herself to never knowing how it was supposed to end. Months later a mysterious boy contacts Ginny from London saying he's found her bag. Finally Ginny can finish what she started. But instead of ending her journey the last letter starts a new adventure—one filled with old friends new loves and once-in-a-lifetime experiences. Ginny finds she must hold on to her wits . . . and her heart. This time there are no instructions.