Viking has acquired Deborah Harkness's A Discovery of Witches to be published in Winter 2011. This is a tale of science and magic in which a long-lost alchemical manuscript is discovered at the Bodleian Library at Oxford, leading to romance between a 1,500 year old vampire and a witch in denial of her powers. World, audio, and first serial rights were acquired in a deal by Viking's Carole DeSanti, VP and Editor at Large, from Sam Stoloff, VP & Senior Agent, Frances Goldin Literary Agency.