Emmy-award-winning reporter Ida Siegal makes her chapter book debut with a hilarious look at one girl's journey into journalism, mystery-solving, and fame — or at least two out of three! This is Emma Perez, and I'm ON THE AIR! Today at school, Sophia, Javier, and I were working on our extra-awesome outfits for the costume party. We had the best idea ever and were going to win the contest! But now Sophia's costume is missing. Where could it be? Did someone take it on purpose? Emma and her friends weren't ready for so much party drama, but if they work together to figure out what happened, they just might save the day! It's time for a new edition of EMMA IS ON THE AIR!