A.D. Robertson is a New York Times and internationally bestselling author. Prior to becoming a full-time novelist, Robertson was a professor of early modern history at Macalester College, giving her a background that informs her books' compelling blend of mythology, history, and lore. She grew up in northern Wisconsin and now lives in New York City. A.D. Robertson is a pen name for Andrea Cremer, author of the New York Times bestselling Nightshade series.

Andrea Cremer also known as Andrea Robertson, is the author of the internationally bestselling Nightshade series. She spent her childhood daydreaming and roaming the forests and lakeshores of Northern Wisconsin. Andrea has always loved writing and has never stopped writing, but she only recently plunged into the deep end of the pool that is professional writing. Before she wrote her first novel, Andrea was a history professor at Macalester College in St. Paul, Minnesota. In her books, she strives to bring together her two passions: history and fantasy. Andrea now lives in New York and writes full time. To contact Andrea, please visit, andreacremer.com