her all-time favorite band is playing a one- night only concert in Paris?and there are tickets available to the sold-old show for three lucky people. The catch? Fans who want a golden ticket have to work for it via a scavenger hunt around the City of Light. Through cryptic clues blasted out every day through a special website, Gwen and her new friends find themselves in a race against time?and against other die-hard fans?as they scramble to landmarks throughout Paris. And it turns out the concert tickets might not even be the biggest prize...