Matthew's hope of keeping Diana safe at Sept-Tours appears short-lived as Ysabeau refuses to welcome the warmblood under her roof. Knox calls an emergency meeting of the Congregation to denounce Matthew for abducting a witch but Matthew's ferocious older brother Baldwin plays a careful game to maintain control in the face of Gerbert foretelling the end of the de Clermonts - and throws Diana to the lions. Diana isn't the only witch facing persecution. Satu pays a shocking price for her curiosity when Knox discovers she has been searching through the Witches' Archive and learned his guilty secret. Meanwhile, things turn nasty in Oxford for Marcus and Miriam as Juliette attacks.
Diana Bishop, a historian and reluctant witch unexpectedly discovers a bewitched manuscript in Oxford's Bodleian library. This discovery forces her back into the world of magic in order to unravel the secrets it holds about magical beings. She is offered help by mysterious geneticist and vampire, Matthew Clairmont. Despite a long-held mistrust between witches and vampires they form an alliance and set out to protect the book and solve the mysteries hidden within while dodging threats from the creature world.
A Discovery of Witches - Series 1, Episode 4 Synopsis and Schedule