Cara Delevingne has become quite the budding entrepreneur. The model-turned-actress announced she's launching her first fiction novel. The Paper Planes star took to Instagram to share her exciting news. "Another pinch me moment!! Announcing my first novel Mirror, Mirror, coming out this October! SO EXCITED!!!" 

The young-adult book is described as a "twisty coming-of-age story" that's centred on a group of sixteen-year-old friends Red, Leo, Naima and Rose, and their adventures through school and relationships. Delevingne explains, "It all changes one day... (que scary music