Andrea Cremer is the internationally bestselling author of the Nightshade novels, which include Nightshade, Wolfsbane, Bloodrose, Rift and Rise. She is also the author of Invisibility, which she wrote with David Levithan. She went to school until there wasn't any more school to go to, ending with a Ph.D. in early modern history--a reflection of her fascination with witchcraft and warfare--and taught for years at Macalester College. She grew up roaming the forests and lakeshores of northern Wisconsin, but now lives in New York City, where she roams the sidewalks and riverbanks of the concrete jungle she calls home. www.andreacremer.com @andreacremer