The Witcher 3 resumes Geralt's story after the events of The Witcher 2, which finds the Northern Realms under attack by a Nilfgaardian occupation force. He recieves a mysterious letter from his former lover, the sorceress Yennefer of Vengerberg. Geralt sets off on a quest to find Yennefer that will span continents and renuite him with his lost protege Ciri.