Don't Read This Book: The Convention of Fiends, Book 1

Magdalena Wallace is the greatest writer in the world. She just doesn't know it. When three witches inform a thousand year-old necromancer that Mags can write a novel so powerful it can bring an end to human civilization, she's kidnapped and forced to write the book. Rescued, she's on the run with the manuscript - and the fate of humanity - in her backpack, and a whole lot of monsters hot on her heels!