In 957 England to the north of the Thames decided that Edgar, Eadwig's brother, should become their king. Eadwig recalled Dunstan to help in the crisis. (More info needed here).
In 959 Eadwig died and Edgar became king. Shortly after, Dunstan was made Archbishop of Canterbury and with the king's approval began a reform of monastic life in England. Together with Aethelword, Bishop of Winchester and St. Oswold, Bishop of Worcester Dunstan put an end to the decline of monastic life which had been caused by the many Viking raids and the preference of secular clergy.
In 975 Edgar died and was followed by his son Edward (the Martyr). Edward was only fourteen at that time and Dunstan took control of the king's affairs. But his power was not complete and he had to resort to some strange tactics to retain control. It was reported that on one occasion at a council a crucifix spoke to the assembled room. At another that the floor gave way and the only section remaining was that where Dunstan and his followers were sitting. Dunstan's fall from power came on the death of Edward in 978 when Ethelred became king and Dunstan foretold that his reign would be a disaster. Dunstan dedicated the rest of his life, until his death in 988, to cultivating the arts and literature.