It is unknown exactly when the next event happened but it is thought to have happened around 1069 and 1070. After being exiled Hereward returned to his family home where he discovered that the Normans had murdered his brother and set his head above the door. Hereward sought revenge and murdered a bunch of Normans and set their heads in place of his brother's. Hereward then fled to the Fens where he was sheltered by Abbot Thurstan. 