Runaway (2011): An Airhead Novel By Meg Cabot

Em Watts is on the run. With everyone she loves furious with her for something she can't explain, and nothing but the live Stark Angel fashion show on New Year's Eve to look forward to, Em's reached the end of her rope. But when she discovers the truth about Nikki's secret, she knows there's only one person she can turn to. Will Christopher be able to put aside his personal feelings and help her expose her employer to the world? Maybe it would be better to keep on running.