Hjelm examines the various ancient sources mentioning Samaritans, dating from the Persian period to well into the Roman period and emanating from Jewish, Christian, Hellenistic and Samaritan circles. She addresses those issues that can be related to a possible Samaritan-Judaean conflict, and special attention is given to questions about temple, high priests, Levites and prophets, as well as Shechem and Heliopolis. In this radical new investigation, Hjelm points out anachronisms in both the ancient writers and our reading of them and proposes a new understanding of the formation of both Samaritanism and Judaism.